1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Comcast Cuts Cable Cards?

Discussion in 'TiVo Roamio DVRs' started by wecnews, Jan 18, 2014.

  1. slowbiscuit

    slowbiscuit FUBAR

    Sep 19, 2006
    In the ATL
  2. Aero 1

    Aero 1 Member

    Aug 8, 2007
    and they are about to tack on a fee on the locals as well,
  3. HarperVision

    HarperVision TiVo's Italian Cuz!

    May 14, 2007
    I can confirm at least in my situation that I had a base and a pro and the base showed signal levels in the high 80's while the pro showed levels of high 90's and 100 using the same cable tv coax. I took that to mean there's some internal amplification going on in the pro.
  4. SNJpage1

    SNJpage1 Well-Known Member

    May 25, 2006
    If your signal strength is above 90 you need to get it lower. Tivo told me between 85 and 90 is the best. Any higher and it causes problems. If Comcast wont give you an antenuator then go pick up a 4 way splitter and put it in line. That will drop you 7 DB's
  5. rainwater

    rainwater Active Member

    Sep 21, 2004
    My signal strength sits at 100% and I have never had a single problem. The SNR is much more important. The Roamio's are much better at dealing with a high SNR than the Premiere was. Btw, the SNR has nothing to do with the original posters issues.
  6. aristoBrat

    aristoBrat Active Member

    Dec 30, 2002
    Va Beach, VA
    So it's the signal strength then?
  7. rainwater

    rainwater Active Member

    Sep 21, 2004
    No, I doubt signal has anything to do with the original poster. Either his Roamio is defective or Comcast doesn't know how to pair his card correctly.
  8. aristoBrat

    aristoBrat Active Member

    Dec 30, 2002
    Va Beach, VA
    I had pretty much the same symptoms as the OP (on two different Roamios) and the only thing that fixed it was putting a 4-way splitter in-line.

    And I don't think it's Cox, because before TiVo told me to drop the SNR down to the mid-30s, I could swap out the Roamio the old XL4 that it was replacing, and the card would pair the card perfectly on the XL4, every time. Did that probably 5-6x during the troubleshooting. Then swap the XL4 with the Roamio, and have them pair the same card the same way they just did with the XL4, and no-go. Showed perfectly fine on their end, but no encrypted channels on my end.
  9. rainwater

    rainwater Active Member

    Sep 21, 2004
    It is possible but the original poster already noted they had other cablecard TiVos on the same line with no issues. In my experience, the Roamio is less susceptible to SNR issues than the Premiere (but maybe more so than the TiVo HD). But without the original poster giving us any details to the SNR or to their cablecard pairing screen info, it is impossible to tell.
  10. aristoBrat

    aristoBrat Active Member

    Dec 30, 2002
    Va Beach, VA
    Right, so did I.

    When I upgrade my Living Room TiVo, the only thing that changes is the TiVo model.

    The wall jack stays the same.
    The cable card and tuning adapter stay the same.
    The wiring (coax, HDMI, power, USB-to-tuning adapter, ethernet) stays the same.

    All I do is unplug/remove the old TiVo, swap the cable card to the new TiVo, put the new TiVo on the shelf + plug the wires back in, and then call Cox to pair the cable card with the new TiVo.

    Zero problems pairing a Premiere.
    Zero problems pairing an XL4.
    Absolutely could not get a Roamio paired (using the exact same everything that the Premiere and XL4 used) until a 4-way splitter was added in-line.

    Agreed, which is why I was confused when you said "Btw, the SNR has nothing to do with the original posters issues."

    I just wanted to share my experience with the OP, as I had pretty much the same symptoms, down to the cable company system reporting the Roamio paired properly, but the Roamio didn't (and couldn't tune all channels). Maybe he's got the same issue, maybe not.
  11. rainwater

    rainwater Active Member

    Sep 21, 2004
    Because the original poster has no issues viewing the locals. That points to the more likely cablecard pairing or defective Roamio.
  12. aristoBrat

    aristoBrat Active Member

    Dec 30, 2002
    Va Beach, VA
    That's my point. I had two Roamios with cablecard pairing issues. The solution to fix the cablecard pairing was to lower the SNR/signal levels by installing a 4-way splitter. Only then would the cablecard pair with the Roamio, which allowed the Roamio to view everything.
  13. wecnews

    wecnews New Member

    Oct 19, 2009

    Wrote my nasty letter to comcast.

    2 days later I got a call saying they were "out of cable cards in memphis" but working to find one in another state and send to me.

    A few hours later I get another call. I was outside working in the yard, so they left a message. They talked to a senior tech and sent an "upgrade" to my cable card, please go check my TV.

    I did and low and behold 97.5% of my channels were back. On whatever simple button push they did.

    I asked what it was, but they just used nothing words like "upgrade signal"

    Anyway -- points to a pairing issue to me.

    Guy I talked to on the phone (i called back) seemed shocked that i had talked to cable card hotline 8 times and they couldn't help me.

    Anyway…. it didn't fix everything.

    I would still have some channels i'm supposed to get say "this channel not authorized" simple basic ones, like USA and TNT.

    They would say this one minute and then work the next.

    Also sometimes as you change channels the grey screen saying
    "This screen is provided for your cable provider" would pop up.

    Sometimes on it's own in the middle of a show.

    They tried a few more "signal refreshes" they worked on some channels not on others.

    Then some channels I got before were now saying "not authorized"

    So…. they didn't know what was wrong and are sending a tech tomorrow.

    New things popped up

    Tivo would tell me its recording a show. but if you play it, it says it's a partial recording and there's nothing there, it's all black. no video.

    but if you watch that same channel live, it works fine.

    weird huh?

    that never happened before.

    This one too….

    You're watching a show, you see the show just fine but the box

    "this channel is not authorized" popped up over the channel which is showing just fine.

    Again this never happened before yesterday.

    Unsure what they did, but they fixed 97% of it with a button push from their office.

    But it's still wonky.

    To answer your other questions….

    Signal strength is at 97% - 100 % ( it's different on different channels)

    SNR is at 39db - 41db again varying by channel
  14. c3

    c3 TiVoholic

    Sep 8, 2000
    That's about what I had before installing an attenuator, even though I did not have problem without the attenuator. I brought signal strength down to 93-98% and SNR down to 37-39dB.

    When you get a problematic channel, check the signal levels and error counts.
  15. pshivers

    pshivers Retired!

    Nov 4, 2013
    Alhambra, CA
    Just for giggles can you post what the full firmware version number running on your CableCard, so far I have only seen the first three digits mentioned, ie; "152" as being the firmware you have and "153" being the firmware Tivo mentioned would work but Comcast doesn't support.

    I am running firmware "PKEY1.5.2_F.p.2401" on a Cisco CableCard and have had to limit my Roamio Pro to 5 active tuners to have a fully stable service. Any firmware that is older than this firmware release on a Cisco/SA CableCard will not work on a 6 tuner Roamio. The Tivo website states the minimum firmware for Cisco/SA CableCard is "PKEY1.5.2_F.p.2801", hence the problem of only 5 tuners working for me at this time. Charter just shrugs their shoulders at upgrading firmware to a more current release...

    It is my understanding that the ultimate solution is to upgrade the firmware to PKEY1.5.3_F.p.1101 for full functionality on the Roamio Pro, but I believe that firmware release PKEY1.5.2_F.p.3001 also works with all 6 Roamio Pro tuners active according to reports by other users.

    BTW, to activate/deactivate the number of tuners on your Roamio 6 tuner box:

    Go to Settings > Channels > Channel List
    Enter one of the following number sequences using the number buttons on the remote.
    (you will here a sound similar to when you press the "Thumbs Up" button once the code is entered properly).

    These codes will tell Roamio the how many tuners it can use.
    - 88633 = use 3 tuners
    - 88634 = use 4 tuners
    - 88635 = use 5 tuners
    - 88636 = use 6 tuners
    Then force a reboot of the Tivo, very important! Do not skip this last step!
  16. HazelW

    HazelW Member

    Dec 6, 2007
    No. Va
    PKEY1.5.2_F.p.3001 does not work with six tuners. It may work sometimes but eventually you will get errors.
  17. KevinG

    KevinG Member

    Sep 3, 2003
    Mt. Laurel, NJ.
    This might depend on the area you are in, right? I'm going on 2 months without a single issue.
  18. wecnews

    wecnews New Member

    Oct 19, 2009
    My firmware is PKEY1.5.2_F.p.2401

    I have tuners 0 - 5 running according to DVR Diagnostics… for a total of 6.

    I just know it's a heck of a lot and enough for us. lol

    We have the roamio and 3 mini's in our house, but they're never all running at once.

    only me, my wife, and my 4 year old here. :)

    We usually only use 4% of our hard drive of shows.

    as for my other issues

    I have tech supervisor and tivo senior tech on conference call in my home.
    two smart guys.

    Tivo basically said I need the new firmware, to help fix it. Saying Cisco put it out and it helps. Comcast says they're beta testing the new firmware from cisco on their system and it's not available yet until they work out the kinks. They say the 1.5.3 firmware is causing a black screen issue on their network that they're trying to fix. Only a small amount of tivo users have the 1.5.3 in some markets while they work out the kinks So…. 1.5.2 is the best they can do until they finish beta testing.

    Tivo swears the SNR needs to be lower. They say somewhere between 29 and 35 is ideal.

    Comcast says their SNR rate must be 37-38. They say FCC fines them if it's lower than 35.

    Tivo says no FCC requires no lower than 29.

    Pissing match here over the SNR.

    Comcast saying it will affect my internet signal too.

    my outlet where the roamio is , is the same outlet where my modem is. there's a splitter feeding both.

    They finally agreed that as long my -6 attenuator is on the split between the tivo and the splitter it would lower the SNR for the tivo roamio only and that's ok.

    So…. everyone shook hands so to speak.

    Im supposed to go buy a - 6db attenuator, if that doesn't help. Tivo will switch out my roamio, if that doesn't help, I wait for comcast to finish beta testing new firmware.

    Although about 2 hours later my comcast guru's boss called back and said they had brainstormed with some engineers and wanted to come back and try one more thing….

    so…. they'll be here in the morning. We'll see.
  19. c3

    c3 TiVoholic

    Sep 8, 2000
    An attenuator reduces both the signal and noise levels, not the signal to noise ratio directly. If something is too high, it's the overall signal level that's high, not the SNR.
  20. JohnnyO

    JohnnyO Crimper

    Nov 3, 2002
    Thanks for keeping us in the loop. The information you are capturing will certainly help others in the future.

Share This Page