Replacing Wifi TV Boxes with XG1v4 DVR Boxes

I've had 3 wifi tv boxes that have been a nightmare in keeping a stable and constant connection.   I've been to the local store a couple of times and even replaced them...and I still have random problems with various error codes.  To say that I'm very disappointed would be a huge understatement.  Just this morning, 2 more error codes on two different tv's.    I am done dealing with the wifi boxes and simply want to replace them with the newer coaxial DVR boxes (without wifi).  I believe they are the XG1v4 boxes.  Bottom line, I'm requesting 3 XG1v4 DVR Boxes to replace the wifi boxes.

I've been a customer for over 20 years and I've never had so many problems with my cable service.   I prefer to remain a customer, but if this issue isn't addressed, I'll have to leave and find another provider.