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Of course this is annoying.

You can try the latest driver-package from http://wireless.kernel.org/en/users/Download (linux-stable backports releases)

→ Linux Wireless

And the latest Firmware from git

sudo apt-get install git 
git clone git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git 

The appropriate files in /lib/firmware must be replaced.

Test some driver options:

• disable hardware encryption

echo "options rt2800pci nohwcrypt=1" | sudo tee /etc/modprobe.d/rt2800pci.conf
sudo service network-manager stop
sudo modprobe -rfv rt2800pci
sudo modprobe -v rt2800pci
sudo service network-manager start

(typo corrected)

• WLAN - Power-Management

Thanks for the advice!

I still had no luck with this, however, as there is no drivers newer than the one I am using for rt2800pci as far as I can see, including in the backports.

As for disabling encryption, the line "option rt2800pci nohwcrypt=1" is ignored when I recompile the driver ("libkmod: ERROR ../libkmod/libkmod-config.c:686 kmod_config_parse: /etc/modprobe.d/rt2800pci.conf line 1: ignoring bad line starting with 'option'"). Not sure why..

I did, however, find a driver for rt3290 (rt3290.bin) in the firmware, but this is not the one being used. Excuse me for my very basic question, but how do I swap to use this driver instead? modprobe3290sta does not work as modprobe cannot find the driver, even though I have moved it to /lib/modules. I also have added it to /etc/modules and blacklisted rt2800 but nothing seems to change...

Sorry, see above. I corrected a typo (options). Try it again.

Modulinfo:

locate  rt3290sta.ko | grep lib
modinfo rt3290sta
sudo modprobe -v rt3290sta

Guten tag von Frankreich ! I have exactly the same problem. On 12.04 & 13.04 I could use the git hint with kernel 3.6 & 3.8 Now on Xubuntu 13.10 64 bits & kernell 3.11, I suddenly see my own network desapearing (while perfectly operating on my other computers).

I just tried your hint of the 12th. I tell if it stabilizes, what I see on first hand is signal strenght à 71% while I'm 1 meter from my wifi router..

Concerning your last hint, I get :

:~$ modinfo rt3290sta
ERROR: Module rt3290sta not found.

[Edit] I tested : disturbance reapeared in 3 minutes....

(found a possible turnaround : https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1049466/comments/114)

[edit] doesnt work

The good solution is here : https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1049466/comments/116

WORKING !

praseodym schrieb:

wget http://media.cdn.ubuntu-de.org/forum/attachments/29/20/5641297-Ralink_3290sta-2.6.0.0_dkms.tar.gz

sudo tar xvf 5641297-Ralink_RT3290sta-2.6.0.0_dkms.tar.gz -C /usr/src/

Die Dateinamen passen nicht zusammen. Siehe auch:http://www.ubuntu-forum.de/post/363364/nach-update-kein-wlan-ubuntu-12-04.html#post363364

Korrigiert, es war ein "RT" zuviel im "sudo tar" Befehl