I compiled and installed USB-N13 wifi drivers using dkms. Everything was fine with the WiFi and I also had 1 successful kernel upgrade(3.2.0-24). Since kernel version 3.2.0-25 (and recently 3.2.0-26) my wifi card can't connect to my AP.
iwconfig output is below:
ra0 Ralink STA ESSID:"11n-AP" Nickname:"RT2870STA" Mode:Auto Frequency=2.412 GHz Access Point: Not-Associated Bit Rate:1 Mb/s RTS thr:off Fragment thr:off Link Quality=10/100 Signal level:0 dBm Noise level:0 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0
my /etc/network/interfaces file is below:
#WiFi network Card auto ra0 iface ra0 inet dhcp wpa-ssid <myNetrowk> wpa-psk <myPassword>
Update 1: I totally forgot to mention that after I reboot system 4-5 times Wifi starts to work again. Would like to know where should I start to look for the issues since this behavior is not acceptable.