Just got a galaxy SII and having constant issues with internet connection. Phone connects fine over Vodafone network to data.
However, when I switch to wifi at home it loses internet connection. It shows in the notification that it is connected to WiFi and authenticates but cant access anything via internet or apps.
When i do a factory reset, it works fine for a day or so, then reverts back.
I have reset my router/modem to factory settings, and it solved it for a day, then back to the same.
I noticed when I went to advanced WiFi settings today that "IP address" is "unavailable", however, it previously had one when it was working. The IP was automatically assigned by the router. It still has a MAC address.
android version 4.0.3
Router modem is a dynalink RTA1025WE (from telstraclear).
Any help would be great guys,