I'm using Ubuntu 12.10. I can access the internet without problem at work via wi-fi, and I used to do that at home, but my internet provider changed my modem (which now has a native router) and things got a little bit weird.. I still can connect to my home network, my wlan0 interface gets an IP as it should, but I can't browse any websites or ping to any google servers; actually, I can't even ping my router.
With my phone and with another notebook (windows 7) I can access the internet via wi-fi without problems.
When I access the router with the windows note and browse the "Wireless Client List" tab, I don't see my linux notebook.
Here's some outputs:
Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 wlan0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 wlan0 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0
wlan0 Link encap:Ethernet HWaddr 9c:2a:70:89:7a:59 inet addr:192.168.0.5 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: fe80::9e2a:70ff:fe89:7a59/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:11328 errors:0 dropped:0 overruns:0 frame:0 TX packets:13289 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:8270439 (8.2 MB) TX bytes:2182573 (2.1 MB)
lspci -nn | grep 0280
07:00.0 Network controller : Atheros Communications Inc. AR9485 Wireless Network Adapter [168c:0032] (rev 01)