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BoliBoBoli's avatar
BoliBoBoli
New Contributor II
6 years ago

Critical Signal Errors SB6141 Modem

Signal is dropping intermittently, several times per hour. I cleaned and de-oxidized my coaxial cable at the modem which seemed to reduce the frequency of the failures. Need to know if this is something I can fix or if this is something Cox needs to address? Please Help

Downstream Signal Info:

Channel ID 11  9  10  12  13  14  15  16 
Frequency 843000000 Hz  831000000 Hz  837000000 Hz  849000000 Hz  855000000 Hz  861000000 Hz  867000000 Hz  873000000 Hz 
Signal to Noise Ratio 37 dB  37 dB  37 dB  37 dB  37 dB  38 dB  38 dB  37 dB 
Downstream Modulation QAM256  QAM256  QAM256  QAM256  QAM256  QAM256  QAM256  QAM256 
Power Level
The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading
5 dBmV   5 dBmV   5 dBmV   5 dBmV   5 dBmV   5 dBmV   5 dBmV   5 dBmV 

Downstream Signal Info:

Channel ID 3  4  2  1 
Frequency 30300000 Hz  36700000 Hz  23900000 Hz  17400000 Hz 
Ranging Service ID 1477  1477  1477  1477 
Symbol Rate 5.120 Msym/sec  5.120 Msym/sec  5.120 Msym/sec  5.120 Msym/sec 
Power Level 42 dBmV  43 dBmV  41 dBmV  39 dBmV 
Upstream Modulation [3] 16QAM
[3] 64QAM
 		 [3] 16QAM
[3] 64QAM
 		 [3] 16QAM
[3] 64QAM
 		 [3] 16QAM
[3] 64QAM
 
Ranging Status Success  Success  Success  Success 

Modem Info:

Model Name: SB6141
Vendor Name: ARRIS Group, Inc. 
Firmware Name: SB_KOMODO-1.0.7.0-SCM00-NOSH
Boot Version: PSPU-Boot(25CLK) 1.0.12.18m3
Hardware Version: 7.0

Errors:

3-Critical R07.0 Unicast Ranging Received Abort Response - initializing MAC
3-Critical R02.0 No Ranging Response received - T3 time-out
3-Critical R07.0 Unicast Ranging Received Abort Response - initializing MAC
  • BoliBoBoli's avatar
    BoliBoBoli
    New Contributor II
    6 years ago

    Chris and Allen, thank you for the email support on this issue following my post.

    The problem was not a 100Mbps router, but instead the wiring outside of the house.

    Solution: Cleaned and deoxidized coxial connections outside of house (With DeOxit D100L).

    • BoliBoBoli's avatar
      BoliBoBoli
      New Contributor II
      6 years ago

      Unfortunately after a week, this error came back. I installed a new modem/router combo and its getting this error: 

      Sat Aug 17 12:32:04 2019 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC

      I'm pretty sure there's something wrong with the outside wires at this point, I mean, two modems, one brand new, and the same error. I'll be calling in for support from this point.

      • stickboy2's avatar
        stickboy2
        New Contributor
        6 years ago

        i get this error too. getting lots of timeouts from the IP the modem is sitting on. this all started when they changed the bandwidth tiers

  • BoliBoBoli's avatar
    BoliBoBoli
    New Contributor II
    6 years ago

    Also had these two errors in the log:

    3-Critical R03.0 Ranging Request Retries exhausted
    3-Critical R06.0

    Unicast Maintenance Ranging attempted - No response - Retries exhausted
    • Allan's avatar
      Allan
      Moderator
      6 years ago
      Hello. I recommend having a tech come out and take a look. Please send us an email with your full name, address, and a link to this thread to cox.help@cox.com. Thanks. -Allan Cox Support Forums Moderator.