Originally Posted by davemnak
My AT&T phone did not get updated, but I was able to solve the problem by doing the following:
1. Open up the Galaxy S3 phone dialer
2. Then dial *#0011#
3. Look for the “ServiceMode” screen and press the left menu button
4. Select “WiFi”
5. You should see that the “WiFi Power Save Mode” button is “ON” – now put it on “OFF”
6. Your done! Just exit the menu, switch off your WiFi, then switch it back on again.
Credit to google and:
Samsung Galaxy S3 WiFi Problem Fix | Galaxy S3 Reviews
Is yours a US version of the Galaxy S III? I ask, because I saw the same recommendationoM on a UK forum. It seems to work for the international build, but on my AT&T version I get an error message: "Connection problem or invalid MMI code." Nothing worked for me, and I was about to return the phone until I accepted the AT&T download. Just saw Leo Laporte bad-mouthing the update on TWiG (or one of his other shows). Unfortunately I wasn't watching live or I would have corrected him.
BTW, I recently saw a news item from AT&T saying that it did NOT intend to disable local search, and that this capability will be reinstated soon.