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Losing all channels - Tivo Premiere

Discussion in 'TiVo Premiere DVRs' started by sldavis1952, Oct 4, 2011.

  1. Jul 12, 2012 #81 of 591
    sldavis1952

    sldavis1952 New Member

    121
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    Feb 16, 2009
    Longview, TX
    Lost all channels again. So changing to a dedicated coax line didn't help.
    Restarted and channels came back. 2 channels it was on were pixelating so bad you couldn't watch. Going by Longview cable and get the tech to come by again. :(
     
  2. Jul 12, 2012 #82 of 591
    sldavis1952

    sldavis1952 New Member

    121
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    Feb 16, 2009
    Longview, TX
    Longview Cable tech came by and signal was fine for all channels. He replaced the
    cable card. Previously I had put the coax lines back to original configuration, where
    the cable modem has the dedicated line coming into the house.
     
  3. Jul 12, 2012 #83 of 591
    MC Hammer

    MC Hammer New Member

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    Jul 28, 2011
    Any idea what the dBmV levels were when they measured the signal?
     
  4. Jul 13, 2012 #84 of 591
    sldavis1952

    sldavis1952 New Member

    121
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    Feb 16, 2009
    Longview, TX
    The tech measured something and said it was the same as the SNR. It was around 36 for all channels. He measured the analog channels, lower HD channels that aren't encrypted and the upper HD channels that are encrypted. He said all the channels had a signal that was okay. The good news is that at least for this morning the Tivo was working when I got up. Maybe the new cable card will do the trick.

     
  5. Jul 13, 2012 #85 of 591
    MC Hammer

    MC Hammer New Member

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    Jul 28, 2011
    That doesn't sound right. Typical dBmV levels on a CATV system are usually -10dBmV to +10dBmV.
     
  6. Jul 15, 2012 #86 of 591
    skaggs

    skaggs AlbanyHDTV

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    Feb 13, 2003
    Albany, NY
    I lost all my cable channels on my Elite a few days ago. The whole thing started when I couldn't get the local TWC news channel (YNN HD) on my Elite. I started a thread at the TiVo.com site on this because I thought it was a guide issue. A person representing TiVo on that forum (Jessica?) had me redo guided setup. When guided setup was complete, my Elite would not display ANY channels.

    I rebooted the tuning adapter and restarted the Elite many times, still NO Channels at all. I did notice, however, that when I rebooted the TA, the non-SDV channels would display. Once the TA had finished rebooting, no channels would display.

    Having grown frustrated with TiVo support, I contacted TWC via twitter. They asked me for both my TA and CC serial numbers and then attempted to reauthorize my cable card. This didn't work. The TWC rep contacted the TWC cable card hotline and then said that they are aware of a recent TiVo software update that is causing the problem.

    Funny thing is, I also have a plain old Premiere (with CC & TA) in my bedroom that works fine. The TWC rep said that Premiere didn't get the new TiVo software update, while the Elite did. A quick check of the TiVos menus showed the Elite had a different (newer) software version: 20.2.1.2-01-2-758

    TWC said they would notify me when TiVo told them there was a resolution to my issue. In the meantime, they told me to unplug the USB cord between my TA and TiVo so I could receive the non-SDV channels. This doesn't help me with the season premiere of Breaking Bad tonight on AMC (a SDV channel).
     
  7. Jul 15, 2012 #87 of 591
    sldavis1952

    sldavis1952 New Member

    121
    0
    Feb 16, 2009
    Longview, TX
    Lost all channels again. Tivo displayed, "Problem with the signal on this cable channel. Trying again."
    Restarted and channels came back. We were watching Netflix when the channels disappeared. The recording
    of Falling Skies on TNT quit at 8:14 PM while we were watching Netflix.
     
  8. Jul 15, 2012 #88 of 591
    moyekj

    moyekj Well-Known Member

    11,143
    32
    Jan 23, 2006
    Mission...
    Interesting. I recently had a bear of a time getting an Elite unit going. Initially I had problems with signal where 2 out of 4 tuners would not tune anything and I eventually moved to a different cable drop. I ended up having to run guided setup 3 times (once without CC and TA) to get things working. The whole process was much harder than any TiVo unit I've had before. It did have the newest software on it after going through 1st guided setup and rebooting.
    Both times that things didn't work guided setup never prompted me to check the lineup by tuning to a channel (usually 14=CNN). The 3rd time I did guided setup it did prompt me to check a channel and that's when things started working properly. I assumed it was just Elite having problems with signal but maybe there's a software bug component to it.
    Seems to be mostly working now but I've had a couple of unattended reboots I know about so does not seem very stable.
     
  9. Jul 16, 2012 #89 of 591
    MC Hammer

    MC Hammer New Member

    177
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    Jul 28, 2011
    That is the same software revision that is running on all Premieres. The 758 at the end doesn't indicate a newer version - its the first 3 numbers of your TSN. The version number is listed before the -xx-x-xxx (20.2.1.2).

    Have to say, seems clear that it is a Time Warner issue as evidenced by your Premiere running with no issues. They were probably just blowing smoke by attempting to pin the blame on Tivo.
     
  10. Jul 16, 2012 #90 of 591
    skaggs

    skaggs AlbanyHDTV

    233
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    Feb 13, 2003
    Albany, NY
    I called the TWC Cablecard hotlines about 5 minutes ago and the rep immediately told me that they have about 25 TiVo Elite customers with the same issue. He ran me through the diagnostic screens and checked my readings, which were all OK. He said TWC notified TiVo and TiVo does not have a resolution at this time.
     
  11. Jul 16, 2012 #91 of 591
    MC Hammer

    MC Hammer New Member

    177
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    Jul 28, 2011
    Odd. I wonder why it is only affecting the Elites/XL4s and not regular Premieres. Hardware is the only difference between the two.
     
  12. Jul 16, 2012 #92 of 591
    moyekj

    moyekj Well-Known Member

    11,143
    32
    Jan 23, 2006
    Mission...
    The tuners in Elite are completely different (even different IC maker) and they have to interact with CC, TA & associated software, so it's a pretty major difference.
     
  13. Jul 17, 2012 #93 of 591
    sldavis1952

    sldavis1952 New Member

    121
    0
    Feb 16, 2009
    Longview, TX
    I looked at my cable modem and it is showing 6.5 dBmV downstream.
    Tivo support or the Longview Cable techs have never said anything about dBmV levels. What effect does an abnormal level have on a Premiere?

     
  14. Jul 17, 2012 #94 of 591
    skaggs

    skaggs AlbanyHDTV

    233
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    Feb 13, 2003
    Albany, NY
    Here's the response from TiVo_Jessica...apparently my Elite has cached the wrong version of the channel map from my tuning adapter...she recommends wiping the hard drive via, "clear and delete".

     
  15. Jul 17, 2012 #95 of 591
    MC Hammer

    MC Hammer New Member

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    Jul 28, 2011
    Hmmm, sounds a bit like BS to me. It'll be interesting to see if the C&DE does anything.
     
  16. Jul 17, 2012 #96 of 591
    moyekj

    moyekj Well-Known Member

    11,143
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    Jan 23, 2006
    Mission...
    One would think that repeating guided setup should be sufficient to clear out any channel list cache since one of the options obviously is to change lineups. I think that's probably why I had to re-run guided setup more than once to clear out bad cache.
     
  17. Jul 19, 2012 #97 of 591
    c3po33

    c3po33 New Member

    286
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    Sep 1, 2002
    South FL
    I'm on Comcast in South FL and yesterday after I transferred a show and tried to play in on my Elite all I got was a black screen. When I back out of it I could see the menus (in SD) but the background was black. When I go to live TV it would say something about signal strength but then after a few seconds the channels would comeback. If I went back to the video recording it would happen all over again.

    Restarted but still happens intermittently. Is this because of a Tivo software update or what, because my 2 Tivo HDs are working fine? Also yesterday I got kicked out of watching something on my Tivo HD when an emergency broadcast went on and it froze the machine for a few minutes. I wonder if this might also have something to do with what is happening on the Elite. I remember a few months ago after an emergency broadcast 2 or 3 of my Tivo's completely froze and I had to unplug them to get them back up.

    Also before video starts playing, I now see a black screen for 1 or 2 seconds instead of the grey screen I would always see before.
     
  18. Jul 21, 2012 #98 of 591
    mooneydriver

    mooneydriver New Member

    21
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    Feb 17, 2007
    Exact same problem. Six month old Premiere Elite on Comcast cable in California. Happened a few weeks ago and once again yesterday. Inability to replay recorded video tells me that it's likely a software problem on the Tivo and NOT a Comcast problem. Reboot resolved the problem both times. Older Series 3 Tivo continued to operate normally during both episodes, so I know that it's not a cable problem. Haven't called Tivo yet. I hope they are following this thread.

     
  19. Jul 22, 2012 #99 of 591
    mooneydriver

    mooneydriver New Member

    21
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    Feb 17, 2007
    Another bit of information. The last loss of channels happened while I was recording a show. It stopped recording in the middle of the show and lost all channels. Today, I watched that recording all the way to the point where the recording stopped. At that point, I was no longer able to command the Tivo further. Not able to bring up the guide, go to live tv, or go to the Tivo menu.

    It seems that there was something in the recorded data stream that corrupts the Tivo software, and it is repeatable - it corrupts the Tivo every time that recording is replayed. This is a good clue, and it may help Tivo figure out the cause of this problem (if they are following this thread).
     
  20. moyekj

    moyekj Well-Known Member

    11,143
    32
    Jan 23, 2006
    Mission...
    TiVo representatives are monitoring tivo.com forums so you should post there. See:
    TiVo Support Representatives Now Monitoring forums.tivo.com
     

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