My Wi-Fi worked well for one month on my home and work router.
It now fails to connect. However, I'm still able to detect different wi-fi connections.
Using the default browser, the wi-fi connection seems to fail and it ends up connecting thru the 3G network.
Using Opera browser, which, was working perfectly before, the phone never gets connected to the network and ends up saying that it was unable to connect.
Reboot of the phone was perfomed.
It also worked one more time at some point.
Any clue why it stopped working sudenly.
***Edited to add labels***