Steve126's profile

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Tue, Dec 29, 2020 7:00 PM

Cable Modem Error Logs



I'm having issues with my internet and xfintiy agents cant figure it out yet. I would to post my error logs to see if somone could help me to decipher error codes to see if there is an answer why i'm not getting speeds I have payed for. Is there personal information in the event logs. I will post partial logs until I find out.


Here are some errors: 


  • Time Not Established, Critical (3), No UCDs Received - Timeout;;CM-MAC
  • Time Not Established, Critical (3), SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=
  • Time Not Established, Critical (3), No Ranging Response received - T3 time-out

Thanks for your time.





87K Messages

5 m ago

Please post the error log entries in their entirety and also post the *Downstream Power Level*, the *Upstream Power Level*, and the *SNR* (Signal to Noise Ratio) numbers.

What is the exact make and model number of the modem ?

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