Random channels go black on TIVO HD

Discussion in 'TiVo Series3 HDTV DVRs' started by DrDatabase, Oct 26, 2007.

  1. Jan 14, 2008 #81 of 140
    superunknown911

    superunknown911 New Member

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    Dec 30, 2006

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    I had this same issue and it was driving me crazy with Cox in Phoenix with a single M-Card. I called Cox out to replace with two S-Cards and the issue has gone away (crossing fingers) for over a week... Not the solution I wanted but I'll pay the extra money for the card to have it keep me from going crazy..
     
  2. Jan 14, 2008 #82 of 140
    YazooWho

    YazooWho New Member

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    Sep 30, 2004
    Gilbert, AZ
    All,

    *UPDATE*

    If you read an earlier post by me, I talked to Tivo support and they admitted there was a problem and they requested some info, etc.

    Tivo Support called me yesterday to let me know that they confirmed that there is a issue with the particular SA M-cards that Cox/Phoenix has issued. He told me that Tivo is working with SA and Cox to get the problem resolved. As of right now, there is no fix other than rebooting, but Tivo wanted me to know that they found the issue and are working on a solution.
     
  3. Jan 14, 2008 #83 of 140
    ChadS

    ChadS New Member

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    Nov 2, 2007
    Interesting. Keep us posted as to whether or not this "solution" holds up. Like you said, not the greatest but better than having to reboot every 2-3 days or so.
     
  4. Jan 14, 2008 #84 of 140
    BrianAZ

    BrianAZ Back on the wagon

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    Aug 13, 2007
    Chandler, Az
    I wouldn't recommend going from M cards to S cards. I had S cards and there is an Audio sync issue impacting users in the Phoenix area. The video will tile and then the audio is out of sync until you hit pause/play. On some shows it can happen as often as every 90 seconds throughout the entire show! This was primarily impacting the SD channels as well as Discovery HD for me. It got so bad that I switched to the M card which people said fixed it.

    Now I hear that the M card loses channels once every couple days but a reboot fixes it. I've not had this happen to me yet, but it seems this is a better problem than the audio sync issue.

    Can someone who's experienced both comment?
     
  5. Jan 15, 2008 #85 of 140
    YazooWho

    YazooWho New Member

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    Sep 30, 2004
    Gilbert, AZ

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    I have experienced both issues with both a TivoHD and S3.

    I originally had a S3 (Cox/Phx 2 S-cards) for about a year until December when I had both pixelation and audio sync problems all over the channels. I tried everything from signal, new cards, new connections and cabling to fix the issue and nothing worked. I finally went out and bought a THD to test to see if it was Cox and not the S3. I hooked up the THD with the same s-cards (call in to Cox to get it paired) that were pixelating in the S3 and sure enough, same thing happened.

    Called Cox and the tech came out with 3 s-cards and 1 m-card. Only one of the s-cards worked with the THD and the m-card worked fine (for a while). I decided to keep the m-card with the THD and keep the S3 until a fix is found.

    Now the THD has channels that go blank and reboots work to fix them temporarly until Tivo, SA and Cox figure out whats going on with the cards.
     
  6. Jan 15, 2008 #86 of 140
    MarkinAZ

    MarkinAZ New Member

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    Dec 17, 2007
    Chandler, AZ
    It's too early to say for sure but I think I've made some progress on this. A tech from one of the contracted companies came out yesterday since phone tech support didn't seem to have much knowledge about CC.

    He checked all the connections and levels and made a few adjustments. They tried to re-hit my cards and still no progress on the EMM count that Tivo support says is critical. I asked him to check the CC ID and Host ID numbers. The CC#s were correct but both Host IDs were wrong. They corrected that and hit the cards again and finally we started to see the EMM count increase. Before the tech left both cards showed EMMs Processed at 51.

    Only time will tell if this does the trick but it is progress as I see it. I hope this helps all of you that have had this problem. I'll report back if it doesn't fix this permanently.
     
  7. Jan 15, 2008 #87 of 140
    BrianAZ

    BrianAZ Back on the wagon

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    Aug 13, 2007
    Chandler, Az
    Yazoo - Which issue was more irritating? I couldn't stand the pixelation/tiling/sync issue so I moved to M card... I've not experienced the channel drops yet. No idea how frequent or disruptive it can be. At least they've acknowledged there is a real issue there. Hoping I chose the lesser of two evils here.
     
  8. Jan 15, 2008 #88 of 140
    YazooWho

    YazooWho New Member

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    Sep 30, 2004
    Gilbert, AZ
    Defintely the lesser of the 2 "evils" is the blank channels. I have made it a routine now to restart twice daily and I havent had any channels go blank on me for about 5 days.

    I couldn't stand the pixelation and audio syncing at all. Neither did the rest of the family. When some shows are basically unwatchable, it got really bad.

    When I got my m-card installed, it was fine for a few days and then it started to blank out. Especially channel 106 (for the baby) which we watch in the mornings.
     
  9. Jan 15, 2008 #89 of 140
    BrianAZ

    BrianAZ Back on the wagon

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    Aug 13, 2007
    Chandler, Az
    Good to hear!! I wish the Tivo would give you more control over things via an API. There is so much I could do in the way of cooperative scheduling, scheduled reboots to stave off dropped channels, etc if they would just open it up. Thanks for the quick feedback
     
  10. Jan 20, 2008 #90 of 140
    yroca

    yroca New Member

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    Dec 6, 2004
    Starting to wonder if 'something' hasn't changed already on Cox's end. I seem to have gone a good 4 or 5 days now without reboot which is unusual (normally 2-3 days at best).

    The thing I have noticed is I will switch to some channels and the screen will stay black for 2+ seconds (and I start to think I will need to reboot), and then the channel will come up. The delay isn't on all channels - but I wonder if something has been changed.

    Has anybody else had the issue in the last day or two?
     
  11. Jan 20, 2008 #91 of 140
    YazooWho

    YazooWho New Member

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    Sep 30, 2004
    Gilbert, AZ
    I have been doing some tests and sending them into Tivo because the issue has not been officially fixed. My guess is that you have been a little lucky but it will return.

    Try going into the CableCard menu and look at the different screens. Alternate between a few of them (CP, DIAG, Host) a few times. After a few menu choices or a few mins, you might get the "Failed to load..." errors. after that happens, your channels will start going blank again.

    FYI.. I'm still having the issue.
     
  12. Jan 20, 2008 #92 of 140
    BrianAZ

    BrianAZ Back on the wagon

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    I have had the issue maybe 2-3 times since Thursday. It's pretty aggravating, but nowhere near as bad as the audio/visual sync issue was.

    I just finished working with the Executive Resolutions dept (Abigail) the other day on another issue. I guess I'll add my name to the list so I know when they get this channel drop issue fixed. I wish ))Tivo would open up access to certain commands via an API. It would also be nice if the Tivo worked with snmp. I could capture when it fails to record with the error that I don't have access to a channel (clear indicator of this problem) and trigger a reset.
     
  13. Jan 22, 2008 #93 of 140
    diamondback7

    diamondback7 New Member

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    Feb 10, 2005
    Just to chime in so Tivo/Cox knows they have more users with problems.

    I have Tivo HD with Mcard with Cox in Phx. Same blank channel problems as everyone else.

    Series 3 with two single streams does not have this problem.

    EMM count on Tivo HD is 0.

    What do I need to tell Cox to do to get the EMM count up? Does anyone know how to get in touch with someone halfway competant with cable cards at cox phoenix?
     
  14. Jan 24, 2008 #94 of 140
    colflagg

    colflagg New Member

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    Sep 19, 2007
    Phoenix, AZ
    I have a Series 3 with two single stream cards that is working fine and another Series 3 with two Mcards that is having this same issue. I'm glad I found this thread, because having to reboot every few days is very frustrating and I'm glad there's a known issue that is being worked on.

    I've been thinking about putting my Tivo on a programmable "timed" outlet to reboot it for me on a nightly basis. This way I won't keep missing my scheduled recordings when the channels go out every 2-3 days. Something like this: http://www.smarthome.com/2046.html?src=WG1010247

    Looking forward to a resolution.
     
  15. Jan 24, 2008 #95 of 140
    yroca

    yroca New Member

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    Dec 6, 2004
    I have used an Intermatic timer that I picked up from Home Depot - that has similar features - ability for 1 minute interval - which is important. I was using to to powercycle a cable model daily. The only thing I would worry about is possible damage caused to the TiVo hard drive by powering it off and on in such a manner on a daily basis.
     
  16. Jan 24, 2008 #96 of 140
    jcaudle

    jcaudle Member

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    Aug 16, 2004
    Fairfax, Va
    I live in Fairfax, Va, also a cox market, and I have a Tivo S3, Humax Dvdr, and a Tivo HD. The S3 has 2 scientific atlanta S cable cards. I never have problems with digital channels on the S3 or Humax. However with the Tivo HD, with one SA M-Card, I am now on my 4th HD box (thank god i bought at costco where they can be easily exchanged). I keep losing all non analog channels (above 102) and all non local HD channels. I have to reboot or call Cox to get the card reauthorized. Cox has changed the M cards and it still after 3-4 days to maybe 2 weeks loses them again. I wonder if getting S cards installed will help. Anyone have any ideas?

    Thanks
     
  17. Jan 24, 2008 #97 of 140
    jcaudle

    jcaudle Member

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    Aug 16, 2004
    Fairfax, Va
    One other question I had. Is this only a problem with the M Cards in the HD unit? I am not having similar problems with my S3 with S Cards.
     
  18. Jan 24, 2008 #98 of 140
    BrianAZ

    BrianAZ Back on the wagon

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    Aug 13, 2007
    Chandler, Az
    I considered this solution... but had the following questions/thoughts:
    1. Does rebooting prevent the issue or just fix it once it happens?
    2. Would rebooting without using the GUI be too abrupt and damage your hard disks?
    3. Is there a way to programatically instruct your Tivo to restart w/o using the interface? Thinking something like an API/webservice I could call from my workstation/laptop/cellphone/etc to have it restart when I'm not sitting in front of my unit.
    4. Does anyone know if there's a way to get the Tivo to throw off SNMP traps/notifications when a show fails to record? Even if I couldn't get it to auto-restart, I could have it page me and thus would know it had to be restarted. As it is now, I don't realize it until I sit down to watch a recording that was not recorded.
     
  19. Jan 24, 2008 #99 of 140
    m_jonis

    m_jonis Member

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    Jan 3, 2002
    Albany, NY
    I just had it happen again to me as well. I don't get a black screen, I get a gray screen. TivoHD said "channel not available". When I went into the diagnostics, I got the same errors as before.

    SA M card.

    I wish they'd fix it.
     
  20. BrianAZ

    BrianAZ Back on the wagon

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    Aug 13, 2007
    Chandler, Az
    Appearantly this is a known issue which Cox, Tivo and SA are all working to resolve. I had the Tivo HD with 2 S cards and the Audio Stutter/Sync issue currently impacting that configuration was far more irritating than the channels dropping every couple days. At this point I'm living with the lesser of two evils in hopes that they fix it soon.
     

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