I have been using 12.04 on my Toshiba satellite L750 for about 2 months now, and I have a very peculiar issue. My WiFi network will not connect to my Home WiFi, no matter how many different fixes I tried from the threads in this forum. The strange part is that the WiFi connects to other networks - At my university, Workplace etc. - EXCEPT for the 2 networks at my Home. - the main network and the Guest network.

For the Guest wifi , it says "connected", but I cannot access any webpage.
The main network, however, just shows as "Connecting" and never connects.
However, I can connect to both networks from Windows 7.
Any ideas?? I am at my wit's end with this.... I have been using a wired connection till now.

Thanks in advance for your help!!!