I am having a problem with the WiFi on my I9300 where any 2.4GHz network drops out a few meters away from the access point with the error "Authentication Error Occurred". This does not happen on 5GHz APs. I have tried three different routers and a variety of authentication methods.
I have searched this issue extensively, and whilst I have found a number of people experiencing similar issues, I have not found a solution. I am beginning to believe it is a fault in the 2G hardware.
Has anyone else experienced this problem?