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View Full Version : Time Warner Cable - Tivo HD S3 locking up and rebooting when using HD channels


jamietalbot
10-06-2009, 01:42 PM
I know there have been a number of threads on Tivo freezing, but none seemed to describe my specific scenario so thought I would start a new one. (FUll disclosure: After posting, I saw a similar thread just a few posts down, but my symptoms are different - no screech, for one thing)

I am not as technically sophisticated as many of you, so please bear with me. If you have any questions I can answer, I will try to do so as soon as I can (I am not in the same place as the box right now)

We have a refurbed HD Tivo, purchased over a year ago. Using Time Warner cable (with HD service). We have an expansion drive as well - one of the ones you buy through Tivo itself. 500g. No problems until the last month or so.

In the last month, Tivo seems to lock up and eventually reboot when we view or record HD channels. Non-HD channels have no problems. By "lock up" I mean the picture sometimes freezes, the remote becomes non-responsive, and sometimes we just have a black screen. When the remote does respond, sometimes the menus take an extremely long time to populate, or to transition from one to another.

When recording, we find that Tivo has recorded the show in a series of "partials" with significant gaps between them (we suspect the time that passed during the reboot). Sometimes it reboots as we watch - again while either we are watching an HD channel or Tivo is recording one while we watch something else.

We have not noticed this as being more of an issue with some channels than with others, but that is possible. It also does not happen all the time, but is common enough for us to stop watching/recording HD channels until we can fix this.

Tivo support initially thought it was a bad drive (or bad expansion drive) but when I told them that non-HD channels had no problems, they changed their minds and thought that perhaps the HD signal was coming in too strong for Tivo to handle, so it was crashing. They suggested I purchase an "RF filter" for the cable line, which they said would reduce the signal strength.

Coincidentally, we had Time Warner cable in the house last weekend to look at an unrelated problem, and I asked them to check the signal strength to our HD box. They said it was a little higher than average, but not significantly so, so they doubted the strength of the HD signal was the problem.

I think that's about all of it. Does anyone have any suggestions? Does an RF filter seem like a worthwhile approach to fixing the issue?

pgreene8
10-06-2009, 03:18 PM
To check the signal strength yourself, from TiVo Central select Messages & Settings > Account & System Information > DVR Diagnostics. You will find it listed in there. Should be You will probably see 2 of them, one for Tuner 0 and one for Tuner 1 (if you scroll down). TiVo support told me ideally it should be attenuated down to 80-85%, which I did. But it didn't fix my problem.
Maybe you just need a new cable card. Or call TiVo support and ask them to walk you through a Kick Start to evaluate if the hard drive does have a problem.

jamietalbot
10-06-2009, 03:54 PM
Thanks pgreene

Signal strength as measured by the Tivo I can answer now, as we went through that during the support call with Tivo. It was showing as 100% for the HD channels. I guess in some situations, 100% is not a good thing?