Problem with USB Realtek Wifi device

[José Luis Segura Lucas <josel.segura@gmx.es>]

Hi!

After a recent upgrade on my i386 Debian system, my Wifi USB dongle stops working. I tried it on another computer with Debian (amd64), upgraded and with the firmware-realtek package installed too, and it works fine.

The device is:

root@osgiliath:~# lsusb  | grep WLAN
Bus 005 Device 003: ID 0bda:8172 Realtek Semiconductor Corp. RTL8191SU 802.11n WLAN Adapter

I have the latest firmware-realtek package version (0.39) and the wireless card is up and able to scan networks. But, when I try to connect to my WPA network, the association is not made. I can see the following error on /var/log/daemon.log:

Jul 22 16:32:49 osgiliath NetworkManager[2517]: <info> Config: added 'key_mgmt' value 'WPA-PSK'
Jul 22 16:32:59 osgiliath wpa_supplicant[2666]: wlan0: Trying to associate with 00:8e:f2:73:45:d6 (SSID='/home/wireless' freq=2462 MHz)
Jul 22 16:32:59 osgiliath wpa_supplicant[2666]: wlan0: Association request to the driver failed
Jul 22 16:33:04 osgiliath wpa_supplicant[2666]: wlan0: Authentication with 00:8e:f2:73:45:d6 timed out.

I tried to rewrite the password, and to stop Network Manager and try to connect with iwconfig, but I finally get the same wpa_supplicant error.

Is it a known problem? Do you know any solution to it?

Thanks in advance

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