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lsfinn99's avatar
lsfinn99
Aspirant
Aug 14, 2023

WAN accessibility cut-out at 18:01 MT every night

  • An ISP (xfinity) service tech checked and confirmed the signal and line quality UP to the modem is in spec.
  • An ISP service tech re-provisioned the modem.
  • Per the ISP service tech there are no line splitters, amps, or attenuators between the modem and ISP service box.
  • Two different ISP service techs separately replaced the RG6 coax cable up to the modem.
  • The cable is in-wall; so, there is no way to check for kinks, damage, or moisture in the line (other than checking signal levels).
  • The ISP service techs checked the connector ends.
  • I have disconnected the modem from the power for over 1 minute and powered back on with no change in the symptomology.

 

Let me note again three salient aspects of this failure:

* The cut-off occurs regularly at a very specific time (18:01 MT) each PM. Over the last several days I've confirmed that the AM cut-off occurs regularly at 6:00 MT (i.e., no mail from icloud or my business server is received after 6:00 AM MT); and

* The cut-out is only partial: the xfinity web site is accessible, and generally (but not always) google is accessible. Sometimes a few other web sites (e.g., local community newspaper) remain accessible; however, almost all others - including biggies (nytimes.com, washingtonpost.com) - time-out; 

* Prior to my changing DNS servers I was unable to recover WAN connectivity, with or without a modem reboot, until morning (generally between 8:00 - 9:00) when a modem reboot would recover WAN connectivity. After changing DNS servers I am generally able to recover connectivity after a modem reboot.

 

While appreciated, generic suggestions that do not recognize or acknowledge the particular details of the failure I'm experiencing - especially those highlighted above - are unlikely to be helpful.

 

5 Replies

  • FURRYe38's avatar
    FURRYe38
    Guru - Experienced User
    Aug 22, 2023

    Any progress on this? 

    What NG product model are you referring too? 

    lsfinn99 wrote:
    • An ISP (xfinity) service tech checked and confirmed the signal and line quality UP to the modem is in spec.
    • An ISP service tech re-provisioned the modem.
    • Per the ISP service tech there are no line splitters, amps, or attenuators between the modem and ISP service box.
    • Two different ISP service techs separately replaced the RG6 coax cable up to the modem.
    • The cable is in-wall; so, there is no way to check for kinks, damage, or moisture in the line (other than checking signal levels).
    • The ISP service techs checked the connector ends.
    • I have disconnected the modem from the power for over 1 minute and powered back on with no change in the symptomology.

     

    Let me note again three salient aspects of this failure:

    * The cut-off occurs regularly at a very specific time (18:01 MT) each PM. Over the last several days I've confirmed that the AM cut-off occurs regularly at 6:00 MT (i.e., no mail from icloud or my business server is received after 6:00 AM MT); and

    * The cut-out is only partial: the xfinity web site is accessible, and generally (but not always) google is accessible. Sometimes a few other web sites (e.g., local community newspaper) remain accessible; however, almost all others - including biggies (nytimes.com, washingtonpost.com) - time-out; 

    * Prior to my changing DNS servers I was unable to recover WAN connectivity, with or without a modem reboot, until morning (generally between 8:00 - 9:00) when a modem reboot would recover WAN connectivity. After changing DNS servers I am generally able to recover connectivity after a modem reboot.

     

    While appreciated, generic suggestions that do not recognize or acknowledge the particular details of the failure I'm experiencing - especially those highlighted above - are unlikely to be helpful.