OnePlus One WiFi issue when phone ISN'T locked

I was on 12.0-YNG1TAS17L I was having some issues with SMS message not sending sometimes plus the stage-fright stuff was vulnerable in this build so I decided to try upgrading to PACMAN rom 5.1 and was receiving an error to execute the updater binary. I finally found the solution to the issue, and that was to update to the latest nightly of CM to upgrade some firmware? Maybe it was radio related? I flashed that and while I was still in recovery I did another wipe followed by a flash of the PACMAN rom, which then worked. After using the PACMAN rom for a few days I was noticing some lockup issues and the WiFi kept dropping while I was using the phone. (Phone wasn't sleeping). I decided that I would just go back to CM and install the latest version. I flashed the latest SNAPSHOT build from 9/1. The WiFi issues are still occurring so it isn't ROM specific. I am thinking that the new firmware that was flashed during the nightly flash that I did caused the problem.

So has anyone else had this problem? If so is there an easy fix? If I flash YNG1TAS17L will it back out the firmware update? Thanks.