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Connectivity and managing Your Comcast Business network
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New Contributor

Cable Modem rebooting in the middle of the day causing 5 minute outages

Hello,

 

My cable modem, Arris SB 6183, reboots almost every single day and causes a 5 minute outage in my internet connection. When this occurs, I see the following error in the cable modem logs.

 

Fri Aug 28 13:48:31 2020 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=74:ea:e8:f0:e7:b6;CMTS-MAC=00:01:5c:65:70:5b;CM-QOS=1.1;CM-VER=3.0;
Fri Aug 28 13:48:31 2020 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=74:ea:e8:f0:e7:b6;CMTS-MAC=00:01:5c:65:70:5b;CM-QOS=1.1;CM-VER=3.0;
Fri Aug 28 13:48:31 2020 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 2;CM-MAC=74:ea:e8:f0:e7:b6;CMTS-MAC=00:01:5c:65:70:5b;CM-QOS=1.1;CM-VER=3.0;
Fri Aug 28 13:48:47 2020 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=74:ea:e8:f0:e7:b6;CMTS-MAC=00:01:5c:65:70:5b;CM-QOS=1.1;CM-VER=3.0;
Fri Aug 28 13:48:47 2020 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=74:ea:e8:f0:e7:b6;CMTS-MAC=00:01:5c:65:70:5b;CM-QOS=1.1;CM-VER=3.0;
Fri Aug 28 13:48:47 2020 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 1;CM-MAC=74:ea:e8:f0:e7:b6;CMTS-MAC=00:01:5c:65:70:5b;CM-QOS=1.1;CM-VER=3.0;
Fri Aug 28 13:49:03 2020 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=74:ea:e8:f0:e7:b6;CMTS-MAC=00:01:5c:65:70:5b;CM-QOS=1.1;CM-VER=3.0;
Fri Aug 28 13:53:23 2020 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=74:ea:e8:f0:e7:b6;CMTS-MAC=00:01:5c:65:70:5b;CM-QOS=1.1;CM-VER=3.0;
Time Not Established Notice (6) Honoring MDD; IP provisioning mode = IPv6
 

Can I have someone look into this?

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Official Employee

Re: Cable Modem rebooting in the middle of the day causing 5 minute outages

Hello, I hope overall your weekend has been a good one. I am sorry this intermittent connectivity is hindering your online experience. I know you need a stable connection to get things done and your business depends on this. I promise I will take the right actions to help as this is the right team to help. Are you able to send a private message so I can locate your account? If you can include your name exactly as it appears on your account, your full-service address, and your account number? (or phone number) this would be perfect.

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New Contributor

Re: Cable Modem rebooting in the middle of the day causing 5 minute outages

I'll send the info in a private message.

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Frequent Contributor

Re: Cable Modem rebooting in the middle of the day causing 5 minute outages

you may want to delete this post with personal information, and instead send it to the support bot via private message.