I upgraded my SGS3 to Android 4.1.2 2 days ago when I got the notification and since the upgrade I have not been able to connect to any of WiFi networks I normally connect to e.g. my home and friends and family wifis. it attempts to connect but then reports authentication error. So I can only use 3G at the moment which is killing my data allowance. I have use the online chat support from 02 but their advice didn't help at all. it being reported on forums on the web as a problem but there doesn't seem to be a fix. At this rate I will need to revert to 4.1.1
Any ideas? Or has anyone come across this problem themselves?
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