Wifi/3G Flicker after updating to 6.1.2

Updated from 6.0 to 6.1.2 prior to updating I always had fantastic Wifi at my primary location, never had a problem. Upon updating my wifi is not constant and my connection is constantly flickering between 3G and Wifi. Any suggestions?

- I already tried resetting my network connections on my phone.

Sincerely,

An iPhone User