Live Rewind not Working on specific channel after replacing DVR multiple times

Nov 2025: I Started having intermittent problems with live rewind on my XG1v4 DVR (primary box). This was occurring on most channels, by end of Dec. the problem was now only occurring on 5 - 10 channels.

02/05/26: I called Xfinity to troubleshoot / fix the problem, service tech came to a few days later to work on the DVR problem. He replaced my XG1v4 DVR 3 times try to fix the problem, but these boxes (2 - XG1v4's, 1- XI6) had more problems than mine. After none of these worked, we decided to just my old one back in for the time being, this took over an hour due to him having to contact his support to get the box reprovisioned.

02/24/26: Another service tech came, he only had a XG2 DVR box but went ahead and installed it. This DVR box also had the same problem as the others.

02/25/26: The XG2 DVR box is so slow and unresponsive I go to the local Xfinity store to try and swap it out, they don't have any, so they order one to be delivered to me.

02/27/26: Xfinity DVR arrives; it is not the one I needed. The local Xfinity store ordered the wrong box after I repeatedly stated the XG1v4 DVR

02/28/26: Contact national Xfinity support, had them order me the XG1v4 DVR.

03/02/26: XG1v4 DVR arrives. This DVR works as it should except for one channel that consistently had live rewind (time shift) problems.

That channel is NBC 906 (HD). This is the local NBC affiliate; live rewind has always worked until late last year. This is NOT a network channel where programs are not allowed to be recorded.

- There is no live rewind time shift buffer when turning the TV on in the morning (5:00 - 9:00)ish, after 9:30 - 10:00 it will work most of the time, then eventually stop working later in the day.

- If go to an app (Netflix, Prime, etc.) and then exit, any live rewind buffer that should have been there is gone. This also occurs when watching any DVR recorded programs.

- When I change to channel 906 and that channel is recording a program, the screen/box does not know that it is being recorded, a red timeline should show when you press the OK button.

- Turning CEC off does not resolve the problem.

I tested all of this on the NBC Channel 10 (SD version from the same station) and all DVR functionality works as it should.

Some might say to replace the box again, I've had several DVR boxes now and they all have the same problem with this channel. I think it's time to escalate this problem to Xfinity techs who know how the DVR cloud service works and is managed. All of the local techs here are great, they just have no knowledge of how to fix this let alone who to contact. And when they can't fix it some people will think "these techs are terrible and have no idea what they are doing". Xfinity - do you hear this, you are making these guys look bad because you don't provide them with the knowledge, skills or even who to contact for DVR/cloud playback problems.