TX packets:11872 errors:0 dropped:0 overruns:0 carrier:0 RX packets:12133 errors:0 dropped:0 overruns:0 frame:0 Wlan0 Link encap:Ethernet HWaddr 00:08:ca:e6:6b:59 TX packets:1727 errors:0 dropped:0 overruns:0 carrier:0 RX packets:1727 errors:0 dropped:0 overruns:0 frame:0 Resources: irq:17 memory:dea00000-dea7ffff memory:dea80000-dea8ffff So the problem is defenitly with wireless configuration or driversĬapabilities: bus_master cap_list rom ethernet physical wirelessĬonfiguration: broadcast=yes driver=ath9k driverversion=3.2.0-23-generic-pae firmware=N/A ip=192.168.2.11 latency=0 multicast=yes wireless=IEEE 802.11bgn I connected my android phone in wlan and enabled USB tethering with ubuntu machine. Tx excessive retries:1 Invalid misc:2 Missed beacon:0 Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Retry long limit:7 RTS thr:off Fragment thr:off I tried iwconfig, this is the output lo no wireless extensions.

I am sure this is not the machine problem, because my dual boot win 8 works fine. I have to disconnect & connect the wifi to get it work again. Net works fine on the initial boot, after couple of web requests from a browser or command line or any tool, internet stopped working. Recently i updated my 12.10 ubuntu, ever since i got this strange wifi internet problem.

Qualcomm ar9485