Live and cloud recorded video low quality

I have 2 Cox Contour receivers (1 nonrecording too) with cloud recording. I have been experiencing poor quality video that comes and goes on live and recorded video. I had a tech here for over 3 hours and he could not fix the problem. Signal into the house is fine and he even replaced the router. Upon checking Wifi bands we found out that a neighbor who just go Cox is on the same wifi channel we are on. So it makes sense that we are getting interference. The ability to change the wifi channel is not selectable in the app and now after going through chat support they say they cannot change the channel. Has anyone found a workaround to this? I am about ready to switch to ATT.