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pgalded's avatar
pgalded
Follower
Sep 16, 2020

CM600 continuously drops internet

i have been experiencing increasing dropped wifi over the last few months.  Now up to dozens of times per day.  xfinity says to contact netgear problem not onxfonity side according to them. Any ideas?  

My event log:

 

2020-09-16, 05:29:48Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=10:da:43:f5:ad:e1;CMTS-MAC=00:5f:86:92:85:5c;CM-QOS=1.1;CM-VER=3.0;
2020-09-16, 05:29:36Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=10:da:43:f5:ad:e1;CMTS-MAC=00:5f:86:92:85:5c;CM-QOS=1.1;CM-VER=3.0;
2020-09-16, 05:29:28Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=10:da:43:f5:ad:e1;CMTS-MAC=00:5f:86:92:85:5c;CM-QOS=1.1;CM-VER=3.0;
2020-09-16, 05:29:16Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=10:da:43:f5:ad:e1;CMTS-MAC=00:5f:86:92:85:5c;CM-QOS=1.1;CM-VER=3.0;
2020-09-16, 04:15:28Critical (3)No Ranging Response received - T3 time-out;CM-MAC=10:da:43:f5:ad:e1;CMTS-MAC=00:5f:86:92:85:5c;CM-QOS=1.0;CM-VER=3.0;
2020-09-16, 04:15:10Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=10:da:43:f5:ad:e1;CMTS-MAC=00:5f:86:92:85:5c;CM-QOS=1.1;CM-VER=3.0;
2020-09-16, 04:15:06Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=10:da:43:f5:ad:e1;CMTS-MAC=00:5f:86:92:85:5c;CM-QOS=1.1;CM-VER=3.0;
2020-09-16, 04:14:57Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=10:da:43:f5:ad:e1;CMTS-MAC=00:5f:86:92:85:5c;CM-QOS=1.1;CM-VER=3.0;
2020-09-16, 04:14:45Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=10:da:43:f5:ad:e1;CMTS-MAC=00:5f:86:92:85:5c;CM-QOS=1.1;CM-VER=3.0;
2020-09-16, 04:14:37Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=10:da:43:f5:ad:e1;CMTS-MAC=00:5f:86:92:85:5c;CM-QOS=1.1;CM-VER=3.0;
2020-09-16, 04:14:25Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=10:da:43:f5:ad:e1;CMTS-MAC=00:5f:86:92:85:5c;CM-QOS=1.1;CM-VER=3.0;
2020-09-16, 04:13:30Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=10:da:43:f5:ad:e1;CMTS-MAC=00:5f:86:92:85:5c;CM-QOS=1.1;CM-VER=3.0;
2020-09-16, 04:12:25Critical (3)Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=10:da:43:f5:ad:e1;CMTS-MAC=00:5f:86:92:85:5c;CM-QOS=1.1;CM-VER=3.0;
Time Not EstablishedNotice (6)Honoring MDD; IP provisioning mode = IPv6
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out;CM-MAC=10:da:43:f5:ad:e1;CMTS-MAC=00:5f:86:92:85:5c;CM-QOS=1.0;CM-VER=3.0;

1 Reply

  • FURRYe38's avatar
    FURRYe38
    Guru - Experienced User
    Sep 16, 2020

    Have the ISP check the signal and line quality UP to the modem. Have the ISP try to re-provision the modem. 
    Factory reset the modem.
    Be sure there are no coax cable line splitters in the between the modem and ISP service box. 
    Be sure your using good quality RG6 coax cable up to the modem.