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Unresolved c225 error on TiVo Roamio concerning UDP port 123 and TCP port 37

Discussion in 'TiVo Help Center' started by mp2, Jan 9, 2018.

  1. JoeKustra

    JoeKustra in the other Alabama TCF Club

    14,932
    2,244
    Dec 7, 2012
    Ashland, PA...
    Interesting. My R8000 has that box unchecked. It is also where IGMP snooping is enabled, so that is unchecked also. Great find!

    BTW, still curious what model router you have.
     
  2. Sashas

    Sashas New Member

    7
    3
    Jan 14, 2018
    Oh. My. God. That worked!!! You are my HERO!!! Thank you so much for sticking with this and finding the solution. I never in a million years would have figured that out.
     
    Last edited: Jan 21, 2018
    mp2 likes this.
  3. Sashas

    Sashas New Member

    7
    3
    Jan 14, 2018
    I have a Netgear AC1750 WiFi cable modem router, model C6300.

    MP2, I'm curious: are you in the Dallas area? That's where I am.
     
  4. mp2

    mp2 New Member

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    4
    Jan 9, 2018
    I am so glad this solution worked for you too!
    I will pass it along to TiVo so they can hopefully help others. Every time I spoke to them, they referred to it as a "known issue" that was also "affecting others." I also have a Netgear AC1750 model C6300. (ah-ha! Another clue!) I'm actually in California, not Dallas, but I think Charter Spectrum did the firmware update in several areas where they took over Time Warner Cable.
    In any case, I'm thrilled that we can both enjoy our TiVo again!! YAY!!!! :)
     
    Sashas likes this.
  5. sfhub

    sfhub Well-Known Member

    2,883
    482
    Jan 6, 2007
    It seems Negear should be informed their Default DMZ feature is broken also as enabling it shouldn't break TiVo. Default DMZ is supposed to apply to packets that the router would normally have dropped anyway because the router cannot associate the incoming packet with something initiated from an internal unit. It seems Default DMZ is sending more packets to the specified unit than just the ones it would have normally dropped anyway.

    Curious (not for permanent setup, just experimental), if you enable Default DMZ and set the IP to the TiVo IP, does everything work?
     
  6. mp2

    mp2 New Member

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    Jan 9, 2018
    sfhub-
    I also sent an email to Netgear about the situation as there does seem to be an issue there that could be triggered by other things as well.

    Also, if I re-enable Default DMZ and set the IP to the TiVo IP, I'm back to having problems where the TiVo does not connect. It was definitely an issue specific to the DMZ box being checked or unchecked for me. I've heard from another person that this solution worked, but only after they also cleared out their Setting&Messages>Help>Reset to Defaults>Clear Program Information & To Do List, so I'll put that on this thread as well.
    I'm just glad to finally have TiVo again!
     
    Sashas likes this.
  7. NeedMoreCowbell

    NeedMoreCowbell New Member

    15
    3
    Apr 13, 2007
    Anyone else getting this issue? My mother has a Roamio OTA and has the exact same symptoms described by the OP. Only thing is she doesn't have a Netgear, she has a Buffalo router. I've verified DMZ isn't enabled (actually tried with the Tivo in the DMZ and that also didn't work). Rebooted router, rebooted Tivo ... really running out of ideas and patience as her previously working Roamio suddenly and inexplicably stopped getting updates from Tivo.
     
  8. HK1185

    HK1185 New Member

    1
    0
    Mar 8, 2018
    I have the same problem, but I have the Arris router. I’ve called TiVo three times. They are literally useless, and just try to tell me my WiFi strength isn’t strong enough yet everything else works that uses WiFi. I’m so frustrated and don’t even know who can help me fix this! I feel your pain. :/
     
  9. JoeKustra

    JoeKustra in the other Alabama TCF Club

    14,932
    2,244
    Dec 7, 2012
    Ashland, PA...
    Just curious. If you ping TiVo.com, do you have an IP address of 208.73.180.110? I think there is some confusion on the wording. The TiVo's IP vs the IP of TiVo.
     

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