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LowTide's avatar
LowTide
New Contributor II
9 months ago

Motorola MB8600 Issues

I have called Cox a couple times, I have a tech scheduled to come out in 2 days.  We have had a lot of service outages over the last 2 weeks.  

I have been having issues from around 3-5pm every day for over a month, just disconnects for 3-5 minutes them comes back up.  Will do that multiple times a day.

Doesn't seem to be equipment related, but wanted to see what is the latest firmware for the Motorola MB8600?  This is what my modem is saying and some error logs below.

Cable Specification Version DOCSIS 3.1
   Hardware Version V1.0
   Software Version 8600-19.3.15
   Cable Modem MAC Address 00:40:36:4F:29:26
   Cable Modem Serial Number 3348-MB8600-0697
   CM Certificate Installed
    Prod_19.3_d31

20:00:19 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:4f:29:26;CMTS-MAC=d4:ad:71:0d:b5:5c;CM-QOS=1.1;CM-VER=3.1;
Mon Sep 4 2023
20:00:22 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=00:40:36:4f:29:26;CMTS-MAC=d4:ad:71:0d:b5:5c;CM-QOS=1.1;CM-VER=3.1;
Mon Sep 4 2023
20:00:22 Critical (3) SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=00:40:36:4f:29:26;CMTS-MAC=d4:ad:71:0d:b5:5c;CM-QOS=1.1;CM-VER=3.1;
Mon Sep 4 2023
20:00:28 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=00:40:36:4f:29:26;CMTS-MAC=d4:ad:71:0d:b5:5c;CM-QOS=1.1;CM-VER=3.1;
Mon Sep 4 2023
20:00:28 Critical (3) SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=00:40:36:4f:29:26;CMTS-MAC=d4:ad:71:0d:b5:5c;CM-QOS=1.1;CM-VER=3.1;
Mon Sep 4 2023
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:40:36:4f:29:26;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Time Not Established Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:4f:29:26;CMTS-MAC=d4:ad:71:0d:b5:5c;CM-QOS=1.1;CM-VER=3.1;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:40:36:4f:29:26;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1

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  • LowTide's avatar
    LowTide
    New Contributor II

    Looks like there is another outage, seems to happen a lot lately.  I did not get an alert on this one though.

      • WiderMouthOpen's avatar
        WiderMouthOpen
        Esteemed Contributor

        2 OFDM and 1 OFDMA so at least you are in a upgraded area. I also see your signal levels are on the high side which Motorola(Zoom) modems don't do well on. Do you happen to be going through a amp? Last, I see uncorrectables in the 117-129Mhz range which may be overlapping with OFDM.

        Can you describe how the coaxial gets from the street to room the modem is in?