What error are you getting? get a picture of the cable box with a cable saying to check my connections and the message is no network connection can not be
established. I had this issue last year and I called and they reset something and it worked. Its just very frustrating that I cant get a live person on the call. I called 4 times and been on hold aleast 2 hours each call before I hang up.
Is it on all TVs? No just the one TV. My DVR works ok
Any internet issues? No issues
Have you tried rebooting your router and STBs? 50 times but still get the same error. I cant even watch TV in that room.