Quantcast
Channel: Ubuntu Forums - Networking & Wireless
Viewing all 23300 articles
Browse latest View live
↧

[ubuntu] no wifi adapter in ubuntu 18.05

July 17, 2018, 3:28 pm
$
0
0
Hi, yesterday I installed Ubuntu 18.05 in dual boot with Windows 10 but it doesn't recognize mi wifi card (In windows I have no problem). I've tried reinstalling and other things but it's the same. Can you help me plzzzzzzz. I am semi noob in this, and here's is the wireless information script that I read in another post that it's important: http://paste.ubuntu.com/p/Hhv5PtRG6X/.

Thanks! :D
↧
Search

Can I improve my routing speeds with dual gigabit?

July 17, 2018, 7:34 pm
$
0
0
I have an Ubuntu 18.04 server which is running as my router, and I'm using WebMin to configure things.

So I have an onboard gigabit port as well as a dual-gigabit card. My onboard port is used as my WAN connection while one of my NIC gigabit ports is used for LAN routing.

Anyway, I realized at work that I can use two gigabit ports on a NAS to get an effective total of 2Gb (though not to a single device) and both ports appear on the network as a single IP. I'm not sure how this works on a 1Gb switch.

I would think 1Gb would be the total bandwidth available across all devices combined. However my own 24-port Netgear switch reports a "48Gbps" total bandwidth, so clearly I didn't learn something right.

But otherwise, is there a way I can use my two gigabit ports on my server to potentially speed up my total routing capability? I hadn't looked much into this kind of load-balancing. Most of what I've used has been load balancing WAN connections, not LAN connections.
↧
↧

[ubuntu] Unable to reconnect the mobile broadband, if signal drops for more than 3 hours

July 18, 2018, 5:45 am
$
0
0
Hi,

I am working on Ubuntu 16.04 with Telit module for mobile broadband. I am facing the problem in reconnecting the mobile broadband once it lost the connection more than 3 hours.

I was able to use the mobile broadband until there is signal drop.If signal drop occurs for a long period(more than 3 hours, it is varying at times), mobile broadband is unable to re-establish the connection.As I have selected auto connect option in the Mobile broadband connection GUI, it is reconnecting if signal drop is less than 2-3 hours

When I checked the system logs, I found that Network manager is trying to reconnect for some time, if it is not succeed in reconnecting it is signaling modem manager to kill the pppd daemon and switch to simple connect rather than using pppd. Apart from it is removing some other modules. I have attached the syslog's while booting and terminating the mobile broadband connection.

I tried with restarting network manager, modem manager and pppd daemon from systemctl but nothing worked, Can any one suggest the solution to fix my problem.

syslog.zip

Regards,
Naveen.
Attached Files
↧

Wi-Fi problems

July 18, 2018, 5:46 am
$
0
0
Hi,

I just installed Ubuntu 18.04 , you may find that thread here:

https://ubuntuforums.org/showthread.php?t=2396463

Now I have some new issues, namely Wi-Fi ones . Wi-Fi icon is displayed as a question mark (?). Operationally Wi-Fi at times works OK , sometimes disconnected and at times very slow.

What to do ?
↧

How to remove the 'airplane mode' in network settings, forever ?

July 18, 2018, 9:16 am
$
0
0
I want it gone; forever, or very locked out. Not having the option of turning it on or off at all. Just out of my system.
It turns on by itself whenever it wants and disrupts even my wired ethernet.

Guidance, please ?
↧
↧

WiFi - Flight mode after boot or inactivity, please help

July 18, 2018, 12:14 pm
$
0
0
Hello,

After fresh Ubuntu 18.04 installation I have problem with wireless connection.
After boot flight mode is enabled and when I turn on wireless all is ok until I'll leave computer for about 4 minutes, then it will switch to flight mode again and when it is happening I see such entries in logs:
Code:
Jul 18 20:38:44 CBA kernel: wlp2s0: deauthenticating from c0:4a:00:be:89:66 by local choice (Reason: 3=DEAUTH_LEAVING)
Jul 18 20:38:44 CBA kernel: EXT4-fs (dm-0): re-mounted. Opts: errors=remount-ro,commit=600
Jul 18 20:38:44 CBA kernel: usbcore: deregistering interface driver rtsx_usb
Here are my wireless info: http://paste.ubuntu.com/p/kJCmK9b4wf/

Please help me with this issue.
↧

Panda Wireless PAU06 Not Working, Ubuntu 18.04

July 18, 2018, 1:12 pm
$
0
0
I'm new to Linux, just having created a Live USB to test moving away from Windows 7. When I boot in Ubuntu, my Panda Wireless USB device (PAU06) doesn't seem to work - doesn't light up, nothing. The company page says their devices should be plug-and-play with "Linux" but...not so much for me, and the driver they offer to download looks to be a Fedora driver, not Ubuntu.

This is what I got from lsusb:

Bus 003 Device 001 ID: 1d6b:002 Linux Foundation 2.0 root hub
Bus 007 Device 001 ID: 1d6b:001 Linux Foundation 1.1 root hub
Bus 006 Device 001 ID: 1d6b:001 Linux Foundation 1.1 root hub
Bus 002 Device 002 ID: 1d6b:002 Linux Foundation 2.0 root hub
Bus 005 Device 001 ID: 1d6b:001 Linux Foundation 1.1 root hub
Bus 001 Device 001 ID: 1d6b:002 Linux Foundation 2.0 root hub
Bus 004 Device 001 ID: 1d6b:001 Linux Foundation 1.1 root hub
Bus 009 Device 002 ID: 090c:1000 Silicon Motion, Inc. - Taiwan (formerly Feiya Technology Corp.) Flash Drive
Bus 009 Device 002 ID: 1d6b:003 Linux Foundation 3.0 root hub
Bus 008 Device 002 ID: 2109:3431 VIA Labs, Inc. Hub
Bus 008 Device 001 ID: 1d6b:002 Linux Foundation 2.0 root hub

The flash drive shows up, but the Panda Wireless thing doesn't (or my mouse, but that's a different unsolved issue).

What should I do next?
↧

[xubuntu] i am having issues using the network manager applet to setup an openvpn connection

July 18, 2018, 1:45 pm
$
0
0
i have looked this up and all most all the posts and information shows different windows than what i am getting a window that looks like this after selecting the import a saved VPN configuration and selecting the *.ovpn file: https://imgur.com/3hDljrU i can not for the life of me get figure out what to do about this.

i am only attempting to do this because the vpn application the service provides me uses gksudo for the privilege escalation and 18.04 has deprecated that package and i don't want to go through the process of setting it back up because it is an old software and to get the pkexec working with the application so i don't have to have an annoying terminal in the background is something i don't want to learn as it is more annoying and a lot of research to do.

i'm running xubuntu 18.04 x64

i'll edit with whatever other info you need to help just let me know
↧
Search

WiFi works inconsistently on ThinkPad x220i

July 18, 2018, 11:07 pm
$
0
0
Hello,

I just installed latest Ubuntu on the old ThinkPad x220i and at the beginning WiFi didn't work at all until I ran sudo apt-update sudo apt dist-upgrade. It worked very well shortly after commands but stopped in 5 minutes. Right now it either works very slowly under 1mbps or doesn't work at all. The wired connection works good.
I would appreciate any help.

Thanks
↧
↧

[SOLVED] nmap more than 4096 hosts

July 20, 2018, 3:14 am
$
0
0
I'm trying to find out the ip address a piece of equipment with no documentation has been configured too (attempts to check over the serial connection didn't work.) I am connected point to point via an ethernet cable so doing a scan for active hosts it should be the only result (assuming it responds to Ping.)

Code:
nmap -v -e enp0s25 -sn 192.168.0.0/16
use nmap, verbose mode, select ethernet adapter and no port scan (ping only) on the 192.168.x.x range using the /16 CIDR block.

BUT 256*256 would give total number of hosts to be scanned as 65,536. nmap says:
Code:
Scanning 4096 hosts [2 ports/host]
So can I actually scan the whole range in one go? I'm not even certain it is on the 192.168 subnet (but it's most likely) it might also be in 10.x.x.x somewhere. I had seen an example ending with "192.168.0.0.16 10.0.0.0/8" but that still says it's scanning 4096 hosts.

Will it just work despite what it reports or an I missing something?


EDIT: Patience is a virtue! Seems it doers it in 5096 blocks and then moves onto the next block once the previous is completed. Once the scan is done in full and I have thus confirmed this to myself I will mark as Solved.
↧

Wifi(Adapter TPLINK TL-WN823N (v2)) too slow after installing 18.04

July 20, 2018, 3:51 am
$
0
0
Hi,

I made a fresh installation of ubuntu 18.04 on my desktop. Wifi is working but too slow(5mbps) as compared to what i am getting in my another laptop(40-45 mbps).
As mentioned in the forum , my pastebin url is http://paste.ubuntu.com/p/4w2qxHsJGs/

I am new to ubuntu , tried to troubleshoot as per the suggestions mentioned in the forum but made a mess so had to reinstall a fresh copy :-)

would really appreciate your suggestions.

Thanks,
Nikhil
↧

Why can't I Ping from the ethernet port?

July 20, 2018, 7:20 am
$
0
0
Pinging usually works fine, it does from the WiFi anyway. But I don't seem to be able to get it to do so through the ethernet connection, whether I specify it or if I disable everything else to force it.

Code:
$ ping -I enp0s25 10.42.0.81
PING 10.42.0.81 (10.42.0.81) from 10.42.0.1 enp0s25: 56(84) bytes of data.
^C
--- 10.42.0.81 ping statistics ---
204 packets transmitted, 0 received, 100% packet loss, time 207848ms
But I managed to get a point2point nmap to work as PoC.
Code:
$ nmap -T5  -v -e enp0s25 -sn 10.42.0.0/24

Starting Nmap 7.60 ( https://nmap.org ) at 2018-07-20 15:13 BST
Initiating Ping Scan at 15:13
Scanning 256 hosts [2 ports/host]
Completed Ping Scan at 15:13, 1.75s elapsed (256 total hosts)
Initiating Parallel DNS resolution of 256 hosts. at 15:13
Completed Parallel DNS resolution of 256 hosts. at 15:13, 0.00s elapsed
Nmap scan report for 10.42.0.0 [host down]
Nmap scan report for ThisOne (10.42.0.1)
Host is up (0.00026s latency).
Nmap scan report for 10.42.0.2 [host down]

--snip--

Nmap scan report for 10.42.0.81
Host is up (0.0018s latency).
Nmap scan report for 10.42.0.82 [host down]

--snip--

Read data files from: /usr/bin/../share/nmap
Nmap done: 256 IP addresses (2 hosts up) scanned in 1.76 seconds
↧

Unable to Access Windows LAN from Ubuntu

July 20, 2018, 11:23 am
$
0
0
(Running Ubuntu on an HP desktop w/ 8GB RAM, connected by wired Ethernet to a LAN of 3 Windows machines)

Whenever Ubuntu boots, it displays a window as follows:
"Network service discovery disabled
Your current network has a .local domain,
which is not recommended and incompatible
with the Avahi network service discovery.
The service has been disabled."

What is a ".local domain?" This is my first news about one! How can I remove the apparent detection of this ".local domain?"

The windows machines operate well with each other. They appear under "Network" in the Ubuntu file manager but attempting to access them (double-clicking their icons) produces a request for login and password, which puzzles me because they are configured to access each others' files freely. No password has been assigned.

Could someone point me to the proper documentation?

--rLsj
↧
↧

using smbclient mput so that it copies symbolic link (not the target of link)

July 20, 2018, 11:58 am
$
0
0
Is there a way I can run mput under smbclient in such a way that it just copies the symbolic link itself rather than copying in the full target of the symbolic link?

I guess another question I have would be if there is a way to have smbclient's mput to resume on failure? I am trying to recursively move some large directories (500Gb+) and I am getting frequent premature stops. Would be very useful if I could just pick up where I left off

Thanks,
John
↧

[ubuntu] ping: unknown host google.com

July 20, 2018, 12:11 pm
$
0
0
I changed ISPs. The now modem, when run with a Ethernet cable directly to the 'puter works. When the same cable goes to a unmanaged switch, no 'net. Pinging returns:
Code:
ping: unknown host google.com

Searching for no eth0 exists. I see an edit of /ect/init/rc.conf where the OP adds eth0 to the runlevel. But looking at my rc.conf, I don't know where that would go.

1. Is this the correct fix, adding eth0? (that's a zero number, on-screen here it looks like: m,n,O --the letter).
2. I ask as Ubuntu (16.04) has assigned the wired interface name to be: enp6s0.
3. There is NO router here, only an unmanaged switch.
4. When the switch has an Ethernet cable from the modem to the switch, the 'net is enabled. When a (extra) cable runs from the switch to the 'puter, the entire net goes down. What is going on here and how do I correct this?

Code:
mark@Lexington:/etc/init$ cat rc.conf
# rc - System V runlevel compatibility
#
# This task runs the old System V-style rc script when changing between
# runlevels.

description        "System V runlevel compatibility"
author                "Scott James Remnant <scott@netsplit.com>"

emits deconfiguring-networking
emits unmounted-remote-filesystems

start on runlevel [0123456]
stop on runlevel [!$RUNLEVEL]

export RUNLEVEL
export PREVLEVEL

console output
env INIT_VERBOSE

task

script
if [ "$RUNLEVEL" = "0" -o "$RUNLEVEL" = "1" -o "$RUNLEVEL" = "6" ]; then
    status plymouth-shutdown 2>/dev/null >/dev/null && start wait-for-state WAITER=rc WAIT_FOR=plymouth-shutdown || :
fi
/etc/init.d/rc $RUNLEVEL
end script

Code:
mark@Lexington:/$ ip link show dev eth0
Device "eth0" does not exist.
mark@Lexington:/$ ip address show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
      valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
      valid_lft forever preferred_lft forever
2: enp6s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 4c:cc:6a:63:b1:bf brd ff:ff:ff:ff:ff:ff
    inet6 2605:e000:9fc0:5:698b:36eb:4b96:35cf/128 scope global dynamic
      valid_lft 604302sec preferred_lft 604302sec
    inet6 fe80::f35e:6ca9:b307:2f33/64 scope link
      valid_lft forever preferred_lft forever
↧
Search

USB Wifi Adapter Not Responding

July 20, 2018, 1:58 pm
$
0
0
Hello,

Couple of months back I got a USB WiFi adapter to use because the built in card in my laptop has been dreadfully slow in public places like my school's library. It's the OURLINK 600Mbps AC600 Dual Band USB WiFi Dongle I got from Amazon. It's worked fantastic on my Windows 10 OS since I got it, but when I boot into my Ubuntu OS it's unable to turn on and operate at all.

I've looked around and tried to install the driver for the particular chipset in the dongle, but I've hit some bumps along the way and, frankly speaking since I'm new to Linux I'm unsure if I even installed it properly.

I have gone ahead and used lsusb to figure out what my computer sees with when I plug it in (it's the one that's in bold):

Code:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0bda:57b4 Realtek Semiconductor Corp.
Bus 001 Device 017: ID 062a:4101 Creative Labs Wireless Keyboard/Mouse
Bus 001 Device 018: ID 0bda:a811 Realtek Semiconductor Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0bda:57b4 Realtek Semiconductor Corp.
Bus 001 Device 017: ID 062a:4101 Creative Labs Wireless Keyboard/Mouse
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
As well as sudo tail -n 0 -f /var/log/syslog to keep track of it as soon as I plug it in:

Code:
Jul 20 15:54:18 alex-X550JF kernel: [ 2635.376075] usb 1-1: new high-speed USB device number 20 using xhci_hcd
Jul 20 15:54:18 alex-X550JF kernel: [ 2635.516507] usb 1-1: New USB device found, idVendor=0bda, idProduct=a811
Jul 20 15:54:18 alex-X550JF kernel: [ 2635.516513] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Jul 20 15:54:18 alex-X550JF kernel: [ 2635.516518] usb 1-1: Product: 802.11ac WLAN Adapter
Jul 20 15:54:18 alex-X550JF kernel: [ 2635.516522] usb 1-1: Manufacturer: Realtek
Jul 20 15:54:18 alex-X550JF kernel: [ 2635.516526] usb 1-1: SerialNumber: 00e04c000001
Jul 20 15:54:18 alex-X550JF mtp-probe: checking bus 1, device 20: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-1"
Jul 20 15:54:18 alex-X550JF mtp-probe: bus: 1, device: 20 was not an MTP device

Any help would be appreciated it, and if nothing works well any good recommendations on a better WiFi dongle?

Cheers!
↧

unclaimed wifi driver for Qualcomm Atheros AR938x

July 20, 2018, 3:54 pm
$
0
0
I just bought a wifi pcie card from amazon with the qualcommatheros chipset thinking it has a better compatibility with linux. Somehow it still fails to work for my system. The details are as follows:OS: Kubuntu 18.04 - 4.15.0-29-generic

These are the details:

uname -a
Code:
Linux WS 4.15.0-29-generic #31-Ubuntu SMP Tue Jul 17 15:39:52 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux


lspci
Code:
06:00.0 Ethernet controller: Qualcomm Atheros Device abcd (rev 01)


sudo lshw -C network
Code:
  *-network                 
      description: Ethernet interface
      product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
      vendor: Realtek Semiconductor Co., Ltd.
      physical id: 0
      bus info: pci@0000:05:00.0
      logical name: enp5s0
      version: 0c
      serial: 1c:1b:0d:e3:f6:6c
      size: 1Gbit/s
      capacity: 1Gbit/s
      width: 64 bits
      clock: 33MHz
      capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
      configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8168g-2_0.0.1 02/06/13 ip=192.168.1.17 latency=0 link=yes multi
cast=yes port=MII speed=1Gbit/s
      resources: irq:33 ioport:f000(size=256) memory:fd600000-fd600fff memory:f2100000-f2103fff
  *-network UNCLAIMED
      description: Ethernet controller
      product: Qualcomm Atheros
      vendor: Qualcomm Atheros
      physical id: 0
      bus info: pci@0000:06:00.0
      version: 01
      width: 64 bits
      clock: 33MHz
      capabilities: pm msi pciexpress cap_list
      configuration: latency=0
      resources: memory:fd500000-fd51ffff memory:fd520000-fd52ffff


I added the line in the following file /etc/modprobe.d/ath9k.conf
cat /etc/modprobe.d/ath9k.conf
Code:
options ath9k nohwcrpt=1
I even tried editing the modules file, but still no help
Code:
# /etc/modules: kernel modules to load at boot time.
#
# This file contains the names of kernel modules that should be loaded
# at boot time, one per line. Lines beginning with "#" are ignored.

ath9k
ath5k


Could anyone please tell me what's going wrong? I have already spent 2~3 hours on this searching online, with no help.
↧
↧

Ubuntu 18.04 LTS Wifi Trouble

July 21, 2018, 2:54 am
↧

Use WiFi internet while ethernet connected to network

July 21, 2018, 9:25 am
$
0
0
I have some devices I wish to monitor and administer which are on a physical network and not connected in any way to the outside world. I would like to be able to still browse the internet via my WiFi connection while the ethernet is connected to the network these devices are on but as soon as I enable my ethernet connection I can no longer see the outside world! How do I get Ubuntu to use the correct device/interface for the internet? Windows and OSX both just do this automatically!! As it is usually reported if a network is connected to the internet or not why does this not happen with Ubuntu?

Limiting my browser to only use one device or another will not suffice as most of the devices are monitored and administered over http web interfaces! Thus the browser needs to check both connections when an address is entered.
↧

network device vanishes after being renamed [18.04 server]

July 21, 2018, 10:44 am
$
0
0
I recently installed 18.04 server on a Sabertooth 990FX motherboard with an onboard r8169 gigabit ethernet card.

When I try to find the device name with ls /dev/e* there are no results.

dmesg indicates "enp8s0: renamed from eth0"

What is going on? Why is the network device vanishing after being renamed?
↧
Viewing all 23300 articles
Browse latest View live
Search
<script src="https://jsc.adskeeper.com/r/s/rssing.com.1596347.js" async> </script>