Realtek 8188cus usb network dongle stopped working after latest ubuntu ubdates

Can you give the output of:

sudo lshw -C network; lsb_release -a; uname -a; lsusb; sudo rfkill list

Thanks

Hi ,
when you manual install some driver and a kernel update - upgade comes , then you must install again (manual) the driver to work.
Thanks

Hi Andrew,
                     Thanks for your help, the wireless device that is showing up at the moment is an old Belkin dongle t
hat I am using to connect to the internet, the other dongle is plugged into another usb port. Previously the 8188cus module showed up in lsusb, but would not function until i installed the driver.

colin@colin-laptop:~$ sudo lshw -C network; lsb_release -a; uname -a; lsusb; sudo rfkill list
[sudo] password for colin:
  *-network
       description: Ethernet interface
       product: SiS900 PCI Fast Ethernet
       vendor: Silicon Integrated Systems [SiS]
       physical id: 4
       bus info: pci@0000:00:04.0
       logical name: eth0
       version: 91
       serial: 00:c0:9f:b1:71:6b
       size: 10MB/s
       capacity: 100MB/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=sis900 driverversion=v1.08.10 Apr. 2 2006 duplex=half latency=173 link=no maxlatency=11 mingnt=52 multicast=yes port=MII speed=10MB/s
       resources: irq:19 ioport:2000(size=256) memory:e2003000-e2003fff memory:58000000-5801ffff(prefetchable)
  *-network
       description: Wireless interface
       physical id: 2
       logical name: wlan3
       serial: 00:11:50:77:6b:27
       capabilities: ethernet physical wireless
       configuration: broadcast=yes ip=192.168.0.6 multicast=yes wireless=IEEE 802.11bg
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 10.04.4 LTS
Release: 10.04
Codename: lucid
Linux colin-laptop 2.6.32-42-generic #95-Ubuntu SMP Wed Jul 25 15:57:54 UTC 2012 i686 GNU/Linux
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 05e3:1205 Genesys Logic, Inc. Afilias Optical Mouse H3003
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 004: ID 0bda:8176 Realtek Semiconductor Corp.
Bus 001 Device 003: ID 050d:7050 Belkin Components F5D7050 ver 1000 WiFi
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
0: phy0: Wireless LAN
 Soft blocked: no
 Hard blocked: no
colin@colin-laptop:~$

Your wifi has an IP, if you run:

ping -c 4 8.8.8.8

Does it ping ok?

Hi ,
you said you downloaded and installed the driver for realtek dongle..
From where you downloaded , and what did you do to install it ? maybe something like "make" , "make install" ?

If yes then you must doing this procedure every time you have a kernel update so the driver installed to newer kernel.
Thanks

Hi Andrew,
                    At the moment I have two usb dongles plugged into the laptop, the old Belkin one that is working fine and the realtek 8188cus that has stopped working on Linux

Belkin plugged in

colin@colin-laptop:~$ ping -c 4 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=51 time=33.1 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=52 time=30.7 ms
64 bytes from 8.8.8.8: icmp_seq=3 ttl=52 time=30.3 ms
64 bytes from 8.8.8.8: icmp_seq=4 ttl=52 time=31.8 ms

--- 8.8.8.8 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3004ms
rtt min/avg/max/mdev = 30.350/31.526/33.129/1.105 ms
colin@colin-laptop:~$

Belkin unplugged

colin@colin-laptop:~$ ping -c 4 8.8.8.8
connect: Network is unreachable
colin@colin-laptop:~$

Well if you remove the wireless device, you won't get network access. If you run:

echo "nameserver 8.8.8.8" | sudo tee /etc/resolv.conf > /dev/null

do you get web access?

Hi Nick,
             I downloaded the driver from the Realtek website then did the make, make install etc, the same as I did before when it worked,

Colin

Andrew,
               echo "nameserver 8.8.8.8" | sudo tee /etc/resolv.conf > /dev/null does not seem to have much effect.
I only removed the belkin device to check if the realtek dongle was working. I think that this is a driver problem somewhere because previously I could interchange various usb wifi dongles and still get a wireless connection, the only one that does not work on ubuntu now is the realtek device.

Colin

I am going to try reinstalling the driver and see where we go from there

Thanks for your help so far

Colin

Hi colin
yes you must re-install the driver. And you have to re-install it whenever you updated the kernel.
I have already mentioned that in the 2nd post :)
Cheers.

I have reinstalled the driver it still does not work, I do not have any time to play with this now, work is getting in the way!!!

Regards,
               Colin