I have MoDaCo GR14 on my Nexus S. Sometimes the Wifi disconnects when I am moving around the building (normal) but it fails to reconnect. To be specific, it finds the wireless network and tries to reconnect but it gets stuck in the "Obtaining IP" phase.
I switch wifi on/off many times with no success. I even tried installing 'Fix MyWifi' and 'Wifi fixer' with no success. The only solution is to reboot my phone!!!
What's wrong with wifi on the Nexus S?