Currently Being ModeratedDec 15, 2013 8:07 AM (in response to LisainNJ)
We've an article that contains tips which can help get your iPhone's WiFi working correctly.
Currently Being ModeratedDec 19, 2013 10:37 AM (in response to allen a)
Thanks for the link. Unfortunately, it didn't work for me. I contacted tech support and a very helpful supervisor explained to me that there are a few 4s phones with chipsets that were incompatible with the latest OS - something that was unforseen and cannot be addressed via software update. Mine is one of them. Resetting the network settings by tapping Settings > General > Reset > Reset Network Settings.
in this case made the problem worse, as I can no longer connect to my home and business networks.
The phone is being sent out for repair.