Winter 2015 Update Breaks Cablecard

Discussion in 'TiVo Help Center' started by bwhitney, Dec 10, 2015.

  1. RSCHOON

    RSCHOON Member

    101
    1
    Sep 7, 2013

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    This pixelated issue seems to have come back for me in the last week or two. I will try what you posted above and see if that helps. Really wish that this would just work.
     
  2. RSCHOON

    RSCHOON Member

    101
    1
    Sep 7, 2013
    Unplugging the cable while rebooting didn't help. Normal rebooting isn't helping. Unplugging for 1/2 hour isn't helping. Nothing so far and it actually made it worse, now I get no channels, all are v52, no signal. I see that I did get an update at some point and am now on 20.6.1.RC14. I believe that they broke it again with an update. Need to get TiVoSarah in here again...this is ridiculous.

    Sent from my SM-P600 using Tapatalk
     
  3. thyname

    thyname Well-Known Member

    1,237
    145
    Dec 26, 2010
    N. Virginia
    Have you looked at SNR levels under Diagnostics? Are they too low?
     
  4. RSCHOON

    RSCHOON Member

    101
    1
    Sep 7, 2013
    Very low right now...but I'm also not getting any channels right now. It's 26dB with no signal found. This is after I kept rebooting last night to try and bring it back.
     
  5. thyname

    thyname Well-Known Member

    1,237
    145
    Dec 26, 2010
    N. Virginia

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    https://support.tivo.com/articles/T...oamio-Series-Premiere-Series-and-Series3-DVRs

    Check the link above for minimum requirements for SNR for TiVo to work.

    V52 error is because of these. Probably no issues with CableCard but with the signal from your cable provider or a bad TiVo unit.
     
  6. RSCHOON

    RSCHOON Member

    101
    1
    Sep 7, 2013
    Unfortunately, I'm well aware of what it should be and I go through this every time I call TiVo, we go through all the dummy checks first and then they blame the cable company. Then the cable company comes out, shows me that I have a perfect signal right to the box and charges me for the pleasure.

    Right now, this smells exactly like the 21 pages before this and the ordeal we had then. I wish I knew when I got that new update on my TiVo...see if it lines up with my issues.

    Sent from my SM-P600 using Tapatalk
     
  7. thyname

    thyname Well-Known Member

    1,237
    145
    Dec 26, 2010
    N. Virginia
    Same thing happened to me. My new Bolt worked fine for about five weeks and then no channels, just the V52 and low SNR levels. Same exact scenario as yours (including three way calls with Verizon, charged for tech visit, getting new CableCard, etc. etc.). I have a temporary Verizon STB now that works fine, I get all the channels, with SNR levels of 40-41 (as per the Verizon STB system information pages).

    I am still waiting for my TiVo replacement, as it was determined it was a bad Bolt.
     
  8. RSCHOON

    RSCHOON Member

    101
    1
    Sep 7, 2013
    Yeah, the thing that really pisses me off about a replacement is that you lose all your shows. What is the point of having a TiVO to record everything if you lose it on replace? I cannot believe that they don't have a transfer option...pathetic.
     
  9. morac

    morac Cat God TCF Club

    14,992
    2,539
    Mar 14, 2003
    NJ
    Those values that TiVo provides seem off a bit and they don't list values for Roamio and Bolt models.

    I will say that my Roamio has a SNR of 38/39, which according to TiVo's page is too high, but I have no problems with picture. Having a "too high" SNR doesn't make a lot of sense anyway since a high SNR means there very little noise on the line. That's a good thing.
     
  10. thyname

    thyname Well-Known Member

    1,237
    145
    Dec 26, 2010
    N. Virginia
    You probably did not scroll to the second table. Those values are there, including Bolt and Roamio:


    6. The SNR reading must be within the following range to give good-quality video.

    Modulation type:

    QAM 64

    QAM 256

    Minimum SNR

    23 dB

    29 dB

    Maximum SNR

    30 dB

    35 dB

    A higher SNR reading means that the video signal is stronger relative to the noise level on the line. If the SNR value is lower than the minimum, contact your cable provider, who can test and improve the signal on the cable line.

    (can't post a screenshot here).

    You would need to look at both QAM 64 and QAM 256, as they have different requirements for SNR.

    For example (from the table):

    QAM64 - Minimum SNR of 23

    QAM256 - Minimum SNR of 29

    There is some "margin of error" up or down SNR levels, at which TiVo would still work. But If the minimum SNR for a QAM 64 channel is 23 and actual SNR is 9-15, it would not work.
     
  11. Jul 6, 2016 #211 of 214
    RSCHOON

    RSCHOON Member

    101
    1
    Sep 7, 2013
    Mine has been working ok for the past week now, here is what I did. I unplugged my TiVo completely for about 1/2 hour (tried less than that a few times, to no avail) and then plugged it back in and let it bout. When it came back up it was better, no pixelation.

    This similar thing happens to me now just about every time I get a new update.

    Sent from my SM-P600 using Tapatalk
     
  12. RSCHOON

    RSCHOON Member

    101
    1
    Sep 7, 2013
    I just got really bad signal loss and pixelation again yesterday. Appears that I once again got a TiVo update and every time I do, it screws with my signal. I unplugged the whole box for 45 mins and then rebooted...all back to normal. What could be the issue with their updates that screw me up each time?

    Sent from my SM-P600 using Tapatalk
     
  13. Sep 8, 2016 #213 of 214
    RSCHOON

    RSCHOON Member

    101
    1
    Sep 7, 2013
    Two more updates sent and two more issues received. What could this be? Literally every single update screws up my signal levels until I unplug for a while. I am unbelievably frustrated and sick of needing to do this to make my box work. How does nobody else have this issue?

    Sent from my SM-P600 using Tapatalk
     
  14. Sep 8, 2016 #214 of 214
    dennis12

    dennis12 New Member

    10
    1
    Dec 11, 2015
    Hi

    You are NOT alone on this one... I've been through this exact experience, was asked to use a Beta program to help them isolate it, was told they fixed it, got an update and the issue is back. I've sent an email to all of the powers that supposedly be and have gotten silence. I must say that the behavior is no longer absolutely consistent - on ocassion the AGC seems to figure it out (should hit about 97-100% on my Roamio and it sometimes does.
     
    RSCHOON likes this.

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