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Very Weak WiFi With Ubuntu, And Previous Suggestions Aren't Working

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Hi there! Oh boy, I am very nervous. I'll try to be as concise as possible. I'm an absolute beginner with Ubuntu or any Linux-based. I've learned a lot by pouring through the forums, but my skills are about at "Open Terminal, Paste Kind-Hearted-User's Suggestion, Pray" level.

I'm having trouble with WiFi connection. I get 1 or 2 bars anywhere in the house, and never more than 2 even sitting right next to the router. My hard drive is partitioned, Ubuntu and Windows 10. I can jump over to Windows 10 right now, and my WiFi will be full bars, very fast and strong anywhere in the house.

I'm really sorry to be asking this question, I've seen a LOT of other users ask the exact same question, but I've tried those fixes to the best of my ability, and nothing seems to be working. I love Ubuntu, I really don't want to go back to Windows, but I can't use Ubuntu and all its glory if I'm tethered to my Ethernet cord.

(Oh, my TX is 20dBm. I'm not sure exactly what that means, but I found a thread where someone suggested "sudo iwconfig" and checking to make sure TX was between 15 and 20)

A quick rundown of what I've tried:

Code:

sudo apt-get install linux-headers-generic
sudo apt-get install bcmwl-kernel-source

Code:

iwconfig wlan0 power off
Code:

sudo apt-get install linux-headers-generic
sudo apt-get install --reinstall bcmwl-kernel-source
sudo modprobe wl

sudo su
echo 'wl' >> /etc/modules

Code:

sudo modprobe -r rt2800pci
sudo modprobe -v rt2800 pci nohwcrypt=1

Code:

sudo rmmod iwlwif
sudo modprobe iwlwifi 11n_disable=1

I'm sorry if this post is too long. I just want to be clear that I'm not running to make a new thread on my first day. I've been reading through the forums for a few days now, and I just want to be able to use my fancy new operating system.

The issue is that I see experienced Linux users asking for technical specs at the start of some threads, but not knowing if my specs match or are even similar, I'm throwing code at my terminal pretty blindly, hoping that someone else's fix works for me. I really hope I haven't mucked anything up in there with all my failed attempts.

I've really fallen in love with the Ubuntu community, I'm hoping someone can help. And please, if there's anything in this post I can add or cull to make it more helpful and easy on the eyes, let me know. Thank you in advance, I'll be waiting with bated breath. :)

-- Lupus

LAN Party between Windows Vista PC and Lubuntu PC (vía ethernet): Is it possible?

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Hello, I have recently installed Lubuntu 14.04 on an old PC that used to run Windows XP. I'de like to create a LAN party between it and my Windows Vista Home Premium Laptop vía an ethernet cable. (both PCs have an ethernet port). Is it possible? If it is, how? Thanks in advance.

Cant connect to my PC SSH

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Hi.
I can connect to a friend's PC through SSH but he can't connect to mine.
We are connected to the same network on a WiFi.
Is my SSH port blocking incoming requests ?

Bluetooth not activating (Ubuntu 14.04)

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I have exactly the same issues of the OP, I looked at the suggestions on fixing this, but I'm not being very successful.

Could someone take a look on this?

Thanks!

lspci:

Code:

mayara@mayara:~$ lspci
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4)
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b4)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 04)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04)
01:00.0 Network controller: Qualcomm Atheros AR9485 Wireless Network Adapter (rev 01)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)

lsusb:

Code:

mayara@mayara:~$ lsusb
Bus 002 Device 099: ID 0cf3:3004 Atheros Communications, Inc.
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 2232:1008 
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

[ubuntu] wireless not working on hp envy x360 m6 convertible, Ubuntu 16.04

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Hi. I got an hp envy x360 m6 convertible, windows 10 pre-installed. I installed Ubuntu 16.04 using a memory stick, overriding the windows system. Now my wifi won't work. Ethernet is fine, but no possibility of even seeing available wifi networks.
Code:
00:00.0 Host bridge: Intel Corporation Sky Lake Host Bridge/DRAM Registers (rev 08)
00:02.0 VGA compatible controller: Intel Corporation Sky Lake Integrated Graphics (rev 07)
00:04.0 Signal processing controller: Intel Corporation Skylake Processor Thermal Subsystem (rev 08)
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21)
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21)
00:15.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller (rev 21)
00:15.1 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller (rev 21)
00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI (rev 21)
00:17.0 SATA controller: Intel Corporation Sunrise Point-LP SATA Controller [AHCI mode] (rev 21)
00:1c.0 PCI bridge: Intel Corporation Device 9d10 (rev f1)
00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port (rev f1)
00:1c.5 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port (rev f1)
00:1d.0 PCI bridge: Intel Corporation Device 9d18 (rev f1)
00:1f.0 ISA bridge: Intel Corporation Sunrise Point-LP LPC Controller (rev 21)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
00:1f.7 Non-Essential Instrumentation [1300]: Intel Corporation Device 9d26 (rev 21)
02:00.0 Network controller: Intel Corporation Wireless 7265 (rev 61)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
04:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS522A PCI Express Card Reader (rev 01)

[SOLVED] Cannot connect to WIFI after installing Ubuntu 16.04

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Hi,
I've just installed Ubuntu 16.04 on brand new desktop. Everything works, a part from WIFI. I don't see any network.

I've googled, and seen that it is a common problem, however, I have not been able to solve it.

Via ethernet cable, I've updated the system. I paste below a bunch of info, hope usefull (lshw -C; wireless-info; lspci; network-manager)

My questions are:
1) Do I have a wireless card? I guess so...
2) If it is a software/driver problem, how could I solve it?

Obviously, I'm not an expert, just a normal user.

Thank you
j






1) lshw -C

Code:

Hardware Lister (lshw) - B.02.17
uso: lshw [-formato] [-opciones ...]
      lshw -version

        -versión de programa de muestra (B.02.17)

el formato puede ser
        - salida de estructura de hardware en HTML
        - salida de estructura de hardware en XML
        - salida de rutas cortas de hardware
        -businfo muestra información del bus

las opciones pueden ser
        -class CLASS solo muestra un cierto tipo de hardware
        -C CLASS es igual que «-class CLASS»
        -c CLASS es igual que «-class CLASS»
        -disable TEST desactiva una prueba (tipo pci, isapnp, cpuid, etc. )
        -enable TEST activa una prueba (tipo pci, isapnp, cpuid, etc. )
        -quiet no muestra el estado
        -sanitize sanea la salida (elimina información sensible tipo números de serie, etc.)
        -numeric muestra IDs numéricos (para PCI, USB, etc.)

2) sudo apt-get install linux-headers-generic build-essential dkms

DONE


3)
Code:

wget -N -t 5 -T 10 https://github.com/UbuntuForums/wire.../wireless-info && \
chmod +x wireless-info && \
./wireless-info

Code:


wget -N -t 5 -T 10 https://github.com/UbuntuForums/wire.../wireless-info && \
> chmod +x wireless-info && \
> ./wireless-info
--2016-06-26 11:40:33--  https://github.com/UbuntuForums/wire.../wireless-info
Resolviendo github.com (github.com)... 192.30.252.128
Conectando con github.com (github.com)[192.30.252.128]:443... conectado.
Petición HTTP enviada, esperando respuesta... 302 Found
Ubicación: https://raw.githubusercontent.com/Ub.../wireless-info [siguiente]
--2016-06-26 11:40:34--  https://raw.githubusercontent.com/Ub.../wireless-info
Resolviendo raw.githubusercontent.com (raw.githubusercontent.com)... 151.101.60.133
Conectando con raw.githubusercontent.com (raw.githubusercontent.com)[151.101.60.133]:443... conectado.
Petición HTTP enviada, esperando respuesta... 200 OK
Longitud: 16122 (16K) [text/plain]
Grabando a: “wireless-info”

wireless-info      100%[===================>]  15,74K  --.-KB/s    in 0,08s 

Falta la cabecera de fecha de la última modificación -- marcas de tiempo desactivadas.
2016-06-26 11:40:35 (201 KB/s) - “wireless-info” guardado [16122/16122]


Results saved in "/home/veronica/wireless-info.txt".




########## wireless info START ##########

Report from: 26 Jun 2016 11:40 CEST +0200

Booted last: 26 Jun 2016 00:00 CEST +0200

Script from: 26 May 2016 21:56 UTC +0000

##### release ###########################

Distributor ID:        Ubuntu
Description:        Ubuntu 16.04 LTS
Release:        16.04
Codename:        xenial

##### kernel ############################

Linux 4.4.0-24-generic #43-Ubuntu SMP Wed Jun 8 19:27:37 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

Parameters: ro, quiet, splash, vt.handoff=7

##### desktop ###########################

Ubuntu

##### lspci #############################

02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 0c)
        Subsystem: Gigabyte Technology Co., Ltd Motherboard [1458:e000]
        Kernel driver in use: r8169

##### lsusb #############################

Bus 002 Device 002: ID 8087:8000 Intel Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 004: ID 046d:c077 Logitech, Inc. M105 Optical Mouse
Bus 005 Device 003: ID 046d:c31c Logitech, Inc. Keyboard K120
Bus 005 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 002: ID 14cd:125c Super Top SD card reader
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

##### PCMCIA card info ##################

##### rfkill ############################

##### lsmod #############################

##### interfaces ########################

auto lo
iface lo inet loopback

##### ifconfig ##########################

enp2s0    Link encap:Ethernet  HWaddr <MAC 'enp2s0' [IF1]> 
          inet addr:192.168.1.18  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::a66f:5a49:faf6:2412/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:12315 errors:0 dropped:0 overruns:0 frame:0
          TX packets:10831 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:12034932 (12.0 MB)  TX bytes:1197488 (1.1 MB)

##### iwconfig ##########################

enp2s0    no wireless extensions.

lo        no wireless extensions.

##### route #############################

Kernel IP routing table
Destination    Gateway        Genmask        Flags Metric Ref    Use Iface
0.0.0.0        192.168.1.1    0.0.0.0        UG    100    0        0 enp2s0
169.254.0.0    0.0.0.0        255.255.0.0    U    1000  0        0 enp2s0
192.168.1.0    0.0.0.0        255.255.255.0  U    100    0        0 enp2s0

##### resolv.conf #######################

nameserver 127.0.1.1

##### network managers ##################

Installed:

        NetworkManager

Running:

root      761    1  0 11:28 ?        00:00:00 /usr/sbin/NetworkManager --no-daemon

##### NetworkManager info ###############

GENERAL.DEVICE:                        enp2s0
GENERAL.TYPE:                          ethernet
GENERAL.NM-TYPE:                        NMDeviceEthernet
GENERAL.VENDOR:                        Realtek Semiconductor Co., Ltd.
GENERAL.PRODUCT:                        RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (Motherboard)
GENERAL.DRIVER:                        r8169
GENERAL.DRIVER-VERSION:                2.3LK-NAPI
GENERAL.FIRMWARE-VERSION:             
GENERAL.HWADDR:                        <MAC 'enp2s0' [IF1]>
GENERAL.MTU:                            1500
GENERAL.STATE:                          100 (connected)
GENERAL.REASON:                        0 (No reason given)
GENERAL.UDI:                            /sys/devices/pci0000:00/0000:00:1c.2/0000:02:00.0/net/enp2s0
GENERAL.IP-IFACE:                      enp2s0
GENERAL.IS-SOFTWARE:                    no
GENERAL.NM-MANAGED:                    yes
GENERAL.AUTOCONNECT:                    yes
GENERAL.FIRMWARE-MISSING:              no
GENERAL.NM-PLUGIN-MISSING:              no
GENERAL.PHYS-PORT-ID:                  --
GENERAL.CONNECTION:                    Conexión cableada 1
GENERAL.CON-UUID:                      a9b05c41-fd6a-49f3-8f25-d676509217fc
GENERAL.CON-PATH:                      /org/freedesktop/NetworkManager/ActiveConnection/0
GENERAL.METERED:                        no (guessed)
CAPABILITIES.CARRIER-DETECT:            yes
CAPABILITIES.SPEED:                    100 Mb/s
CAPABILITIES.IS-SOFTWARE:              no
WIRED-PROPERTIES.CARRIER:              on
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{0}
CONNECTIONS.AVAILABLE-CONNECTIONS[1]:  a9b05c41-fd6a-49f3-8f25-d676509217fc | Conexión cableada 1
IP4.ADDRESS[1]:                        192.168.1.18/24
IP4.GATEWAY:                            192.168.1.1
IP4.ROUTE[1]:                          dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000
IP4.DNS[1]:                            192.168.1.1
DHCP4.OPTION[1]:                        requested_routers = 1
DHCP4.OPTION[2]:                        requested_domain_search = 1
DHCP4.OPTION[3]:                        requested_time_offset = 1
DHCP4.OPTION[4]:                        requested_domain_name = 1
DHCP4.OPTION[5]:                        requested_rfc3442_classless_static_routes = 1
DHCP4.OPTION[6]:                        requested_broadcast_address = 1
DHCP4.OPTION[7]:                        requested_netbios_scope = 1
DHCP4.OPTION[8]:                        requested_wpad = 1
DHCP4.OPTION[9]:                        next_server = 192.168.1.1
DHCP4.OPTION[10]:                      expiry = 1467192603
DHCP4.OPTION[11]:                      requested_interface_mtu = 1
DHCP4.OPTION[12]:                      requested_subnet_mask = 1
DHCP4.OPTION[13]:                      dhcp_lease_time = 259200
DHCP4.OPTION[14]:                      dhcp_message_type = 5
DHCP4.OPTION[15]:                      ip_address = 192.168.1.18
DHCP4.OPTION[16]:                      requested_static_routes = 1
DHCP4.OPTION[17]:                      requested_domain_name_servers = 1
DHCP4.OPTION[18]:                      routers = 192.168.1.1
DHCP4.OPTION[19]:                      broadcast_address = 192.168.1.255
DHCP4.OPTION[20]:                      requested_ntp_servers = 1
DHCP4.OPTION[21]:                      requested_netbios_name_servers = 1
DHCP4.OPTION[22]:                      domain_name_servers = 192.168.1.1
DHCP4.OPTION[23]:                      requested_ms_classless_static_routes = 1
DHCP4.OPTION[24]:                      subnet_mask = 255.255.255.0
DHCP4.OPTION[25]:                      network_number = 192.168.1.0
DHCP4.OPTION[26]:                      requested_host_name = 1
DHCP4.OPTION[27]:                      dhcp_server_identifier = 192.168.1.1
IP6.ADDRESS[1]:                        fe80::a66f:5a49:faf6:2412/64
IP6.GATEWAY:                           

##### NetworkManager.state ##############

[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true

##### NetworkManager.conf ###############

[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq

[ifupdown]
managed=false

##### NetworkManager profiles ###########

##### iw reg get ########################

Region: Europe/Madrid (based on set time zone)

country 00: DFS-UNSET
        (2402 - 2472 @ 40), (6, 20), (N/A)
        (2457 - 2482 @ 40), (6, 20), (N/A), PASSIVE-SCAN
        (2474 - 2494 @ 20), (6, 20), (N/A), NO-OFDM, PASSIVE-SCAN
        (5170 - 5250 @ 160), (6, 20), (N/A), PASSIVE-SCAN
        (5250 - 5330 @ 160), (6, 20), (0 ms), DFS, PASSIVE-SCAN
        (5490 - 5730 @ 160), (6, 20), (0 ms), DFS, PASSIVE-SCAN
        (5735 - 5835 @ 80), (6, 20), (N/A), PASSIVE-SCAN
        (57240 - 63720 @ 2160), (N/A, 0), (N/A)

##### iwlist channels ###################

enp2s0    no frequency information.

lo        no frequency information.

##### iwlist scan #######################

enp2s0    Interface doesn't support scanning.

lo        Interface doesn't support scanning.

##### module infos ######################

##### module parameters #################

##### /etc/modules ######################

##### modprobe options ##################

[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci

[/etc/modprobe.d/blacklist.conf]
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist i2c_i801
blacklist prism54
blacklist bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist amd76x_edac

[/etc/modprobe.d/blacklist-rare-network.conf]
alias net-pf-3 off
alias net-pf-6 off
alias net-pf-9 off
alias net-pf-11 off
alias net-pf-12 off
alias net-pf-19 off
alias net-pf-21 off
alias net-pf-36 off

[/etc/modprobe.d/intel-microcode-blacklist.conf]
blacklist microcode

[/etc/modprobe.d/iwlwifi.conf]
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211

[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en

##### rc.local ##########################

exit 0

##### pm-utils ##########################

##### udev rules ########################

##### dmesg #############################

[  17.000868] IPv6: ADDRCONF(NETDEV_UP): enp2s0: link is not ready
[  17.227766] r8169 0000:02:00.0 enp2s0: link down
[  17.227812] IPv6: ADDRCONF(NETDEV_UP): enp2s0: link is not ready
[  90.087816] r8169 0000:02:00.0 enp2s0: link up
[  90.087824] IPv6: ADDRCONF(NETDEV_CHANGE): enp2s0: link becomes ready

########## wireless info END ############

4) ABOUT MY SYSTEM

lspci

00:00.0 Host bridge: Intel Corporation 4th Gen Core Processor DRAM Controller (rev 06)
00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06)
00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller (rev 06)
00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 05)
00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 (rev d5)
00:1c.2 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #3 (rev d5)
00:1c.3 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #4 (rev d5)
00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation C220 Series Chipset Family H81 Express LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] (rev 05)
00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller (rev 05)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)
03:00.0 USB controller: VIA Technologies, Inc. VL805 USB 3.0 Host Controller (rev 01)


5) NETWORK MANAGER

network-manager:
  Instalados: 1.2.0-0ubuntu0.16.04.2
  Candidato:  1.2.0-0ubuntu0.16.04.2
  Tabla de versión:
 *** 1.2.0-0ubuntu0.16.04.2 500
        500 http://es.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages
        100 /var/lib/dpkg/status
    1.1.93-0ubuntu4 500
        500 http://es.archive.ubuntu.com/ubuntu xenial/main amd64 Packages

6) iwconfig
enp2s0    no wireless extensions.

lo        no wireless extensions.

7) lspci -n | egrep '0200|0280' | awk '{print$3}'
10ec:8168

Attached Files

wifi fails to connect unless at boot

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ive installed 16.04 lubuntu and if my wireless connects at boot it works fine
but if it fails to find the wireless and i have to wait for it to rescan( there are many wireless stopts around me) to find the wireless connection it will not connect

im useing lubuntu and a usb wireless stick
Bus 001 Device 004: ID 0bda:8172 Realtek Semiconductor Corp. RTL8191SU 802.11n WLAN Adapter


no i did not provide the info from the script is "before posting" as it is filled with personal info and it would take days to manually clean it.
(ie all the access points that could be used to locate someone)

iptables rule

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I need to write an iptables rule which should work this way:
drop all DNS request NOT directed to 8.8.8.8

In my opinion the rule should be like this:

iptables -A OUTPUT -o eth0 -p udp --sport 53 ! -d 8.8.8.8 - J DROP

Is the rule correct?

Thanks a lot
preq

Ethernet not working on Realtek driver.

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Hi All,

This is my first post on the board. I am needing some help. I have followed a few posts to fix my issue but to no avail.

I have had my ethernet connect for me twice in the last 2 weeks.

I followed this post http://ubuntuforums.org/showthread.php?t=2293272 but it still didn't fix the issue.

Im such a noob at ubuntu (I have kodibuntu installed), I don't even know how to tell if my ethernet card is getting recognised, although i did see Realtek Gigabit controller listed so assume that I did something right.

Any way is someone able to help me troubleshoot.

Thanks

[ubuntu] Bluetooth on Ubuntu 14.04 works inconsistently

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I have a lenovo T60. It seemed bluetooth would only work in certain kernels on certain days and sometimes it would not at all. In system settings, The Bluetooth is disabled by default and I cannot change it. It does not even recognize bluetooth at all. And I keep banging my head against the wall with all the suggestions from using Blueman to Bluesz and nothing seems to work.. And the odd thing is it could start back working at anywhere from next startup to a month from now.

:~$ rfkill list
0: phy0: Wireless LAN Soft blocked: no
Hard blocked: no

:~$ lspci -knn | grep Net -A2; lsusb

03:00.0 Network controller [0280]: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection [8086:4227] (rev 02)
Subsystem: Intel Corporation Device [8086:1010]
Kernel driver i use: iwl3945
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 1130:1704 Tenx Technology, Inc.
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

DNS and copy.loop.services.mozilla.com

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Why does my browser connect to copy.loop.services.mozilla.com when starting up firefox and not connecting to any page.

[ubuntu] Running Ubuntu 16.04 from USB stick, booting is Ok, but not able to detect WiFi

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Just bought a new HP Pro laptop with Microsoft Window preloaded and Wifi works well after the computer is booted from Microsoft Window. I want to learn Linux, but I do not want to erase Microsoft Window from my computer. As I have very little knowledge in computer, I want to be safe to run Ubuntu only from a USB stick without having to install it on my Laptop hard disk. After I downloaded Ubuntu 16.04 LTS on a USB stick, I am able to boot the computer from Ubuntu on the USB stick. However, I am not able to establish Wifi internet connection after multiple try, although the same laptop computer is able to automatically connect to Wifi after it is booted from Microsoft Window. I am very new to this (not a computer person) and I am completely lost! Please advise what to do to establish WIFI after booting from Ubuntu. Thanks.

Wifi keeps asking for password in 16.04

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I have an Acer Aspire series laptop running 16.04 and had troubles getting the wireless working generally, now solved (one can find my previous problems here: ubuntuforums.org/showthread.php?t=2328020). At most routers, my wifi now works fine. But I'm staying as a guest now somewhere where this keeps happening:

http://askubuntu.com/questions/45896...onnect-to-it-k

It doesn't say the password is wrong, just keeps asking for it. My password is listed in the network connections and is right, as I'm sending this through a phone using the same password.

Sudo service network-manager restart

hasn't worked, nor has adding the line

REGDOMAIN=BR

to /etc/default/crda

I've seen it suggested elsewhere that one should switch to pure WPA2 encryption instead of WPA/WEP but that doesn't seem to be an option when I edit the connection. What can I do to end this cycle?

[ubuntu] Sky Lake and Atheros QCA6174

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Using Z170 Intel chip set, Ubuntu 16.04, but no WiFi. The Qualcom QCA6174 is not working, no driver.

Has anyone found a solution to this issue?

Thanks!

bridge wireless access to rest of network on same subnet

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Hi,

Spent a couple of weeks banging my head against this problem. I've tried Ubuntu (Desktop and Server) 16.04, in a virtual machine which I want to act as a bridge between my main LAN, and a wireless adapter, so that I can get rid of one of the wireless boxes I've got in use right now. I've got a firewall box, which provides various services like DHCP, and also acts as the gateway, on 192.168.0.1

I can get hostapd working OK, I can see the SSID from a laptop, and I can connect so long as I setup a static IP address.

I've set up a bridge using the various guides, and have tried a few different approaches, but in the end just try the various brctl create and add interface steps from the command line. The bridge comes up OK, and the 192.168.0.2 address is pingable from the rest of the network.

The laptop can ping 192.168.0.2 but no other addresses. Its like no data is crossing across the bridge.

I've seen a few posts suggesting that this isn't possible, but also a few that seem to have achieved what I want to do (I've turned the 4addr option on which seems suggested as a requirement, and without that on I can't add the wireless device to the bridge anyway). Given that routers running dd-wrt / openwrt seem to manage it, which I think just use linux functionality, it made me think it might be possible.

Otherwise the more common approach seems to be to run a dhcp network on the wireless side, so in my case I guess 192.168.1.X. But then I wonder about how devices will detect each other still - I guess possible with some routing rules?

Wondered if anyone has managed something similar? I've tried openwrt in a VM on that box too, but struggling to get the iwlwifi drivers detected the wifi card there!

Thanks!

"Good" way to integrate with Active Directory

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Hi all, hope this is the right place for this this question.
We are currently doing a pilot on Ubuntu desktops and we need to join these to Windows domain.
The more I research, the more confusing it gets. There are so many ways to do it in general: samba, realmd, PBIS, sssd, ....
With most of them, the problem is the amount of configuration that are involved, and the lack of documentation thereof. And to make it more complicated, there are different ways for different distros.
Since we are piloting with Ubuntu, is there are "preferred" way for Ubuntu? (we may be using Mate to be precise)
what I'm hoping to see is:
- minimal configuration
- consistent configuration accross the different desktops (unity, KDE, Mate....)
- stable
- well documented
- adopted by others (hope we're not the only ones)
- and maybe supported by Canonical??

Thank you so much.

[SOLVED] WiFi for HP 17-y020ca under Ubuntu 16.04 always either disabled or “not ready”

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I recently purchased an HP Notebook 17-y020ca and installed XUbuntu 16.04. This notebook has a Broadcom Corporation BCM43142 wireless card.
This wireless card was not originally detected (but the ethernet card worked fine), and I followed the instructions at:

http://askubuntu.com/questions/76558...n-ubuntu-16-04

and now the card appears to be generally detected, and "Enable WiFi" is given as an active (non-greyed-out) option in my Networking menu of the system Panel in XFCE.
When I DO click "Enable WiFi",m this menu often ignores it, but sometimes change the status to indicate that it is enabled via a checkmark next to "Enable WiFi". However, when this happens (i.e., when "Enable WiFi" is checked), one of two things happen further up in the menu. Either it says:

"Wi-Fi is disabled"
or
"Device not ready"


I ran the wireless-info.bash script and include below.

I would be truly grateful for any suggestions that anyone could give. I much appreciate your consideration!


Sincerely,

Nathaniel Osgood

Code:

########## wireless info START ##########


Report from: 27 Jun 2016 11:59 CST -0600


Booted last: 27 Jun 2016 00:00 CST -0600


Script from: 26 May 2016 21:56 UTC +0000


##### release ###########################


Distributor ID:    Ubuntu
Description:    Ubuntu 16.04 LTS
Release:    16.04
Codename:    xenial


##### kernel ############################


Linux 4.4.0-21-generic #37-Ubuntu SMP Mon Apr 18 18:33:37 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux


Parameters: ro, quiet, splash, vt.handoff=7


##### desktop ###########################


Xubuntu (from ~/.dmrc)


##### lspci #############################


01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:8136] (rev 07)
    DeviceName: RTL8166 Lan Connection
    Subsystem: Hewlett-Packard Company RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [103c:8221]


02:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)
    DeviceName: WLAN Broadcom 43142 bgn 1x1
    Subsystem: Hewlett-Packard Company BCM43142 802.11b/g/n [103c:804a]


##### lsusb #############################


Bus 001 Device 002: ID 0438:7900 Advanced Micro Devices, Inc.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 003: ID 05c8:038f Cheng Uei Precision Industry Co., Ltd (Foxlink)
Bus 002 Device 002: ID 0a5c:216d Broadcom Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


##### PCMCIA card info ##################


##### rfkill ############################


0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no
1: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
2: brcmwl-0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
3: acer-wireless: Wireless LAN
    Soft blocked: yes
    Hard blocked: no


##### lsmod #############################


acer_wmi              20480  0
hp_wmi                16384  0
sparse_keymap          16384  2 acer_wmi,hp_wmi
wl                  6365184  0
cfg80211              565248  1 wl
wmi                    20480  2 acer_wmi,hp_wmi
video                  40960  1 acer_wmi


##### interfaces ########################


auto lo
iface lo inet loopback


##### ifconfig ##########################


eno1      Link encap:Ethernet  HWaddr <MAC 'eno1' [IF1]> 
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:1554 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1545 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:634941 (634.9 KB)  TX bytes:364653 (364.6 KB)


wlo1      Link encap:Ethernet  HWaddr <MAC 'wlo1' [IF2]> 
          BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Interrupt:228


##### iwconfig ##########################


eno1      no wireless extensions.


lo        no wireless extensions.


wlo1      IEEE 802.11abg  ESSID:off/any 
          Mode:Managed  Access Point: Not-Associated  Tx-Power=200 dBm 
          Retry short limit:7  RTS thr:off  Fragment thr:off
          Encryption key:off
          Power Management:off
         


##### route #############################


Kernel IP routing table
Destination    Gateway        Genmask        Flags Metric Ref    Use Iface


##### resolv.conf #######################


nameserver 127.0.1.1


##### network managers ##################


Installed:


    NetworkManager


Running:


root      793    1  0 11:49 ?        00:00:00 /usr/sbin/NetworkManager --no-daemon


##### NetworkManager info ###############


GENERAL.DEVICE:                        eno1
GENERAL.TYPE:                          ethernet
GENERAL.NM-TYPE:                        NMDeviceEthernet
GENERAL.VENDOR:                        Realtek Semiconductor Co., Ltd.
GENERAL.PRODUCT:                        RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
GENERAL.DRIVER:                        r8169
GENERAL.DRIVER-VERSION:                2.3LK-NAPI
GENERAL.FIRMWARE-VERSION:             
GENERAL.HWADDR:                        <MAC 'eno1' [IF1]>
GENERAL.MTU:                            1500
GENERAL.STATE:                          20 (unavailable)
GENERAL.REASON:                        40 (Carrier/link changed)
GENERAL.UDI:                            /sys/devices/pci0000:00/0000:00:02.2/0000:01:00.0/net/eno1
GENERAL.IP-IFACE:                     
GENERAL.IS-SOFTWARE:                    no
GENERAL.NM-MANAGED:                    yes
GENERAL.AUTOCONNECT:                    yes
GENERAL.FIRMWARE-MISSING:              no
GENERAL.NM-PLUGIN-MISSING:              no
GENERAL.PHYS-PORT-ID:                  --
GENERAL.CONNECTION:                    --
GENERAL.CON-UUID:                      --
GENERAL.CON-PATH:                      --
GENERAL.METERED:                        unknown
CAPABILITIES.CARRIER-DETECT:            yes
CAPABILITIES.SPEED:                    100 Mb/s
CAPABILITIES.IS-SOFTWARE:              no
WIRED-PROPERTIES.CARRIER:              off
CONNECTIONS.AVAILABLE-CONNECTION-PATHS:


GENERAL.DEVICE:                        wlo1
GENERAL.TYPE:                          wifi
GENERAL.NM-TYPE:                        NMDeviceWifi
GENERAL.VENDOR:                        Broadcom Corporation
GENERAL.PRODUCT:                        BCM43142 802.11b/g/n
GENERAL.DRIVER:                        wl
GENERAL.DRIVER-VERSION:                6.30.223.248 (r487574)
GENERAL.FIRMWARE-VERSION:             
GENERAL.HWADDR:                        <MAC 'wlo1' [IF2]>
GENERAL.MTU:                            1500
GENERAL.STATE:                          20 (unavailable)
GENERAL.REASON:                        0 (No reason given)
GENERAL.UDI:                            /sys/devices/pci0000:00/0000:00:02.3/0000:02:00.0/net/wlo1
GENERAL.IP-IFACE:                     
GENERAL.IS-SOFTWARE:                    no
GENERAL.NM-MANAGED:                    yes
GENERAL.AUTOCONNECT:                    yes
GENERAL.FIRMWARE-MISSING:              no
GENERAL.NM-PLUGIN-MISSING:              no
GENERAL.PHYS-PORT-ID:                  --
GENERAL.CONNECTION:                    --
GENERAL.CON-UUID:                      --
GENERAL.CON-PATH:                      --
GENERAL.METERED:                        unknown
CAPABILITIES.CARRIER-DETECT:            no
CAPABILITIES.SPEED:                    unknown
CAPABILITIES.IS-SOFTWARE:              no
WIFI-PROPERTIES.WEP:                    yes
WIFI-PROPERTIES.WPA:                    yes
WIFI-PROPERTIES.WPA2:                  yes
WIFI-PROPERTIES.TKIP:                  yes
WIFI-PROPERTIES.CCMP:                  yes
WIFI-PROPERTIES.AP:                    no
WIFI-PROPERTIES.ADHOC:                  yes
WIFI-PROPERTIES.2GHZ:                  yes
WIFI-PROPERTIES.5GHZ:                  yes
CONNECTIONS.AVAILABLE-CONNECTION-PATHS:


SSID  BSSID  MODE  CHAN  FREQ  RATE  SIGNAL  BARS  SECURITY  ACTIVE  *


##### NetworkManager.state ##############


[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true


##### NetworkManager.conf ###############


[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq


[ifupdown]
managed=false


##### NetworkManager profiles ###########


##### iw reg get ########################


Region: America/Regina (based on set time zone)


country 00: DFS-UNSET
    (2402 - 2472 @ 40), (N/A, 20), (N/A)
    (2457 - 2482 @ 40), (N/A, 20), (N/A), NO-IR
    (2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM, NO-IR
    (5170 - 5250 @ 80), (N/A, 20), (N/A), NO-IR
    (5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, NO-IR
    (5490 - 5730 @ 160), (N/A, 20), (0 ms), DFS, NO-IR
    (5735 - 5835 @ 80), (N/A, 20), (N/A), NO-IR
    (57240 - 63720 @ 2160), (N/A, 0), (N/A)


##### iwlist channels ###################


eno1      no frequency information.


lo        no frequency information.


wlo1      32 channels in total; available frequencies :
          Channel 01 : 2.412 GHz
          Channel 02 : 2.417 GHz
          Channel 03 : 2.422 GHz
          Channel 04 : 2.427 GHz
          Channel 05 : 2.432 GHz
          Channel 06 : 2.437 GHz
          Channel 07 : 2.442 GHz
          Channel 08 : 2.447 GHz
          Channel 09 : 2.452 GHz
          Channel 10 : 2.457 GHz
          Channel 11 : 2.462 GHz
          Channel 12 : 2.467 GHz
          Channel 13 : 2.472 GHz
          Channel 14 : 2.484 GHz
          Channel 36 : 5.18 GHz
          Channel 38 : 5.19 GHz
          Channel 40 : 5.2 GHz
          Channel 42 : 5.21 GHz
          Channel 44 : 5.22 GHz
          Channel 46 : 5.23 GHz
          Channel 48 : 5.24 GHz
          Channel 52 : 5.26 GHz
          Channel 56 : 5.28 GHz
          Channel 60 : 5.3 GHz
          Channel 64 : 5.32 GHz
          Channel 100 : 5.5 GHz
          Channel 104 : 5.52 GHz
          Channel 108 : 5.54 GHz
          Channel 112 : 5.56 GHz
          Channel 116 : 5.58 GHz
          Channel 120 : 5.6 GHz
          Channel 124 : 5.62 GHz


##### iwlist scan #######################


wlo1      Interface doesn't support scanning : Network is down


eno1      Interface doesn't support scanning.


lo        Interface doesn't support scanning.


##### module infos ######################


[wl]
filename:      /lib/modules/4.4.0-21-generic/updates/dkms/wl.ko
license:        MIXED/Proprietary
srcversion:    4DDC5FCDB1E30F7DFDCA530
depends:        cfg80211
vermagic:      4.4.0-21-generic SMP mod_unload modversions
parm:          passivemode:int
parm:          wl_txq_thresh:int
parm:          oneonly:int
parm:          piomode:int
parm:          instance_base:int
parm:          nompc:int
parm:          intf_name:string


[cfg80211]
filename:      /lib/modules/4.4.0-21-generic/kernel/net/wireless/cfg80211.ko
description:    wireless configuration support
license:        GPL
author:        Johannes Berg
srcversion:    00D8DA6D3B739DDD31FFF50
depends:       
intree:        Y
vermagic:      4.4.0-21-generic SMP mod_unload modversions
parm:          ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
parm:          cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)


##### module parameters #################


[cfg80211]
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00


##### /etc/modules ######################


##### modprobe options ##################


[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci


[/etc/modprobe.d/blacklist-bcm43.conf]
blacklist b43
blacklist b43legacy
blacklist ssb
blacklist bcm43xx
blacklist brcm80211
blacklist brcmfmac
blacklist brcmsmac
blacklist bcma


[/etc/modprobe.d/blacklist.conf]
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist i2c_i801
blacklist prism54
blacklist bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist amd76x_edac


[/etc/modprobe.d/blacklist-rare-network.conf]
alias net-pf-3 off
alias net-pf-6 off
alias net-pf-9 off
alias net-pf-11 off
alias net-pf-12 off
alias net-pf-19 off
alias net-pf-21 off
alias net-pf-36 off


[/etc/modprobe.d/iwlwifi.conf]
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211


[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en


##### rc.local ##########################


exit 0


##### pm-utils ##########################


##### udev rules ########################


##### dmesg #############################


[  12.989617] bluetooth hci0: Direct firmware load for brcm/BCM.hcd failed with error -2
[  12.989627] Bluetooth: hci0: BCM: Patch brcm/BCM.hcd not found
[  13.010399] wl: module license 'MIXED/Proprietary' taints kernel.
[  13.015143] wl: module verification failed: signature and/or required key missing - tainting kernel
[  13.372937] wlan0: Broadcom BCM4365 802.11 Hybrid Wireless Controller 6.30.223.248 (r487574)
[  14.585653] wl 0000:02:00.0 wlo1: renamed from wlan0
[  15.477355] IPv6: ADDRCONF(NETDEV_UP): wlo1: link is not ready
[  15.483048] IPv6: ADDRCONF(NETDEV_UP): eno1: link is not ready
[  15.665397] r8169 0000:01:00.0 eno1: link down (repeated 2 times)
[  15.665478] IPv6: ADDRCONF(NETDEV_UP): eno1: link is not ready
[  17.272949] r8169 0000:01:00.0 eno1: link up
[  17.273002] IPv6: ADDRCONF(NETDEV_CHANGE): eno1: link becomes ready
[  134.246145] r8169 0000:01:00.0 eno1: link down
[  210.833497] r8169 0000:01:00.0 eno1: link up
[  536.696508] r8169 0000:01:00.0 eno1: link down


########## wireless info END ############

[lubuntu] Wireless network randomly drops connection Lubuntu 16.04 LTS

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We are a non-profit educational organization using Lubuntu for educational classroom lab clients, connecting to a small Ubuntu battery powered server with built in wireless Access Point. The client laptops are re-furbished HP Stream 11 netbooks [Intel Celeron N2840 dual 2.16GHz, 2GB RAM, 32GB onboard SSD] and some use the Realtek 8723be wireless card and others use Broadcom bcm43142 wireless cards. We had originally been using Lubuntu 14.04 but decided to upgrade for the next set of schools this year.
After initial installation and working around the well-known Broadcom compatibility issues (thanks to these forums), all of the clients can connect to the server AP. However, we found that after connecting, they randomly stop communicating. I can run a series of PINGS and all packets return in normal 2-3ms range for thousands of attempts, then all of a sudden, a laptop will stop receiving icmp packets (or report tens of thousands of seconds delay), and then timeout with report "Destination Host Unreachable" or in some cases "send msg: no buffer space available". When this happens, other clients configured identically continue to respond with no errors (so that rules out problem at the server AP). The BCM chipsets seem worse than the RTL chipset, but we've seen the exact problem on both versions. Running ifconfig and iwconfig when PINGs are unsuccessful still shows the non-responding client is connected to the AP and has same IP address.
A work around is to disconnect the wireless connection using graphical network manager icon in lower right, or to toggle the "Airplane" mode key. After reconnecting, the client usually communicates with AP normally again (Pings 100% successful) but once in a while only a reboot restores connectivity. Sometimes these droputs happen after 5-10 minutes, and other times it may be hours before a client disconnects. I have about 200 laptops to configure for several schools and this problem is critical because the offline math tutoring program we run from the little server is sensitive to disconnection. I've searched the Internet and tried many things, but so far no success. Here is what I've done so far:
1. Fresh install of Lubuntu 16.04 desktop AMD 64bit from Live ISO disc.
2. Fresh install of Lubuntu 16.04 desktop from i386 32bit Live ISO disc.
3. Connect to other wireless networks -different server APs on different channels, corporate domain AP, different physical location (even went out of city to isolated area with no other wifi signals).
Also compared these same networks while connected with Windows 8 laptops, several Android tablets, and a Dell Latitude 6410 running Lubuntu 14.04LTS, and they did not show any dropouts while the new Lu16.04 devices did.
4. Update everything possible [apt-get update], try different drivers [bcmwl-kernel-source is supposed to be best match for bcm43142, using rtl8723be for RTL]
5. Edited the WiFi power management config file for Realtek by adding in /etc/modprobe.d/rtl8723be.conf
# Disable chipset power mgmt.
Options rtl8723be fwlps=0 ips=0 {alternatively =N)
6. Perform upgrade ( sudo apt-get dist-upgrade) on netbook originally running Lubuntu 14.04LTS and connected to corporate network (with external Internet access). While doing this, it successfully downloaded hundreds of MB of files for the upgrade to Lu16.04 and then started installing/configuring them. Near the end of the process, I noticed the WiFi network dropped out and I had to force reconnect. It had been stable up until a certain point in the upgrade to 16.04. After the Upgrade and running apt-get update to make sure everything was latest, I compared that netbook to some of the others that I had updated from the ISO disc clean install and found it acted the same.
In all cases, PINGS will cease, html pages "freeze", and often the Network manager will pop up message in upper right saying "network disconnected".
Today I ran the "wireless info" scripts by Wild Man, Krytorik, chili555, and others as often mentioned in these forums on this netbook with BCM that was upgraded from LU14.04 to LU16.04. The first report was taken while it was successfully PINGing the server AP [ wireless-info-RA-Ping.txt]. After a couple hours, I caught it failing (Dest host unreachable) and grabbed another capture of the wireless info [ wireless-info-RA-noPing.txt]. Comparing the two report files shows only minor differences in AP signal quality/level, number of packets sent/rcvd, beacon timestamps. The only significant difference I find is that when it was working, it also showed three other neighboring WiFi networks available that didn't show up when it was not successfully PINGing the intended server AP. I am attaching both reports in case anyone can find something else different.
One other thing I will mention is that sometimes under Lu 16.04, I've seen the graphical Network Manager icon in lower right of screen change from the 4-bar signal strength icon to the double-box indicating network disconnected, and sometimes clicking it will not show ANY WiFi networks available, even when I may still be successfully PINGing my server AP. At most other times, the 4 bars show signal level, even when it stops responding to PINGS. So this visual notification doesn't seem to correspond to whether or not the client is really connected, and I am treating it as more an annoyance instead of show-stopper right now so can defer resolution of that until later unless the same fix corrects both the dropping out and the status display. Rebooting always restores the proper display of network status.

I am at a loss what to try next. I've been configuring Lubuntu on these netbooks for a year and have learned my way around CLI, so am not quite a newbie, but I am not a real linux expert yet either. Any suggestions?
Attached Files

Lenovo Yoga 13 no wifi networks or connectivity

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I recently wiped my Windows 10 and replaced it with Ubuntu 16.04. There is no ethernet port for this laptop. When I click on the wifi icon, no networks are listed and when I try to connect to my wifi manual by entering the SSID and Password, it still does not connect. Please help me figure this out. I am not at all an expert with Ubuntu or the Terminal, but I have put Ubuntu on multiple other laptops and have never had this issue.

(Lubuntu) Was this normal?

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Hi all this is my first time posting in the forums but I have used ubuntu, ubuntu mate and lubuntu before. I did go back to windows for awhile in all honesty. So after I saw that 16.04 came out I decided to switch back to linux and use Lubuntu sicne well my cpu doesn't meet the 2ghz requirements. Anyway I put the new lubuntu 16.04 on a usb using universal usb installer. SInce when I tried rufus it said it would download an old version of syslink for some odd reason. So had to use universal usb installer.

Anyway I made the usb I booted it up and choose try lubnutu without installing. Everything worked except the wifi. So figured maybe it would work if I installed it, So I installed it and got a lot of errors saying it couldn't connect to servers during the install. Figured mostly do to no wifi. So it gets done installing I boot it up and find that wifi was installed and working.

So wondering is the USB not supposed to have wifi? I remember in 14.04 it did on the usb but now it doesn't, So wondering is that normal or should I make a new usb?
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