COMCAST BOX NO SIGNAL ON TV UPGRADE

I think Comcast is aware of the issue but likely considers the problem rare enough that replacing the boxes is less costly than buying a new model in which the problem does not occur. About a week ago, the intermittent blips in sound and picture returned and I am now having to cold boot the box every couple days. I have had the replacement box installed for 10 months. Lo and behold with the new box installed, no more issues., until. The phone representative assured me that if I take the phone and the tv box I won’t be charged extra and that is part of the promotion.

COMCAST BOX NO SIGNAL ON TV UPGRADE

With that I took the box back to Comcast and got is exchanged after explaining how I arrived to the conclusion the cable box was at fault. Comcast scammed me once again by pushing a promotion to lower my bill, upgrade my internet speed, send me a tv box (which I didn’t want) and get a free phone line (which I also didnt want). The intermittent blips in sound and picture persisted. I also took the opportunity to upgrade all the HDMI cables. I installed a whole house Surge Protective Device (SPD), installed a better power conditioner/surge suppressor and replaced the receiver. Despite having a power conditioner/surge suppressor, my house took an electrical hit that killed my old receiver (Denon AVR X2000). In the midst of this, we had a really severe thunderstorm. I would cold boot the Xfinity box and it would stop for a while. This only happened when watching cable, never with the other devices. On a previous Xfinity box, I encountered the intermittent blips in sound and picture. I narrowed these issues down to the box by a process of elimination.Īll devices route through the AV receiver via HDMI cables. The most prevalent I have encountered is loss of signal as described by the OP and intermittent 'blips' in sound and picture.

As convenient as it is having cloud storage, the new system is not without its problems.

Comcast box no signal on tv