I have tried other solutions posted on this forum but nothing seems to work. Right now I am wired to the Internet. Please help.
i) Command: lsb_release -a
Distributor ID: Ubuntu Description: Ubuntu 12.04 LTS Release: 12.04 Codename: precise
ii) Command: lspci -nn | grep 0280
04:00.0 Network controller : Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) [168c:002b] (rev 01)
iii) Command: sudo iwconfig Output:
lo no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"welcome123"
Mode:Managed Frequency:2.462 GHz Access Point: 40:4A:03:BF:9A:01
Bit Rate=54 Mb/s Tx-Power=16 dBm
Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:on Link Quality=70/70 Signal level=-28 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:1 Invalid misc:58 Missed beacon:0>
eth0 no wireless extensions.
iv) I tried connecting wifi to internet and it shows that I am connected. However, I am not able to access internet. So, basically my wifi is connected but internet is not working.
v) I tried 4-5 solutions posted here, none of them seems to work. I am new to Ubuntu so not really confident as to what exactly I did. But here are some links to posts I tried:
-- http://ubuntuforums.org/showthread.php?t=2218513 -- http://ubuntuforums.org/showthread.php?t=2218513 -- there was a solution posted by some user names chilli55 that I tried but am not able to find it again right now.