I have a similar problem to stu172. I bought my i9100g just two days ago, rooted it straight away, the wifi signal was good and connected easily. Then the next day I tried to connect and when it searches for hotspots it finds nothing, anywhere. I thought this might be a problem with my router but other devices can connect to it. I tried finding other hotspots.. nothing. Is this maybe a hardware problem? Do you think I should return the phone?