Topic: Disconnecting/Lag Controller

I have a problem, the controller disconnects and reconnects or is having problems altogether which is causing lag, I have tried multiple fixes with no resulting cure. Taken the ps4 apart checked to see if the BT wireless sender receiver was damaged, it was not. The online community has been helpful but have not solved the problem yet.

I had given up on ideas until one day a friend of mine bought his ps4 over for a night of gaming. After playing for a few hours his controller suddenly disconnected and lagged for the rest of the evening. When he went home I asked him if he had the same problem, and he said it hasn't happened since he got home.

So it is my reasoning that there is some sort of wireless interference pattern at play here, I have a ps4 with external HD that has a separate power supply, I also have a second ps4 that my wife uses and her controller, (Yes I have two tv's in my living room, so we can online game together. Couples that play together, Stay together.) goes laggy as well, I bought a new sharp TV, these are the only things that changed before I noticed my controllers going laggy. I have moved my ps4 to different locations, it has not helped.

If anyone knows a fix for this please let me know.