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Daily Disconnections

Contributor

Daily Disconnections

I only have internet service. No splitters.
Modem: Motorola SB8600
Router: Asus RT-AC86U. (Also tested a Netgear AX12 Nighthawk router.)
First contact for this issue. 
When I get disconnected from the internet, all the modem lights are on. The network icon on the bottom does not blink much. Getting 1-2 disconnections a day.

The router says your ISP's DHCP is not functioning properly. Have to turn off router, reboot modem, turn on router to get internet back. 

Signals

 

11:26:07
Mon Jul 29 2019 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=00:40:36:4a:fd:62;CMTS-MAC=00:01:5c:77:e6:75;CM-QOS=1.1;CM-VER=3.1;
11:26:23
Mon Jul 29 2019 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=00:40:36:4a:fd:62;CMTS-MAC=00:01:5c:77:e6:75;CM-QOS=1.1;CM-VER=3.1;
11:26:44
Mon Jul 29 2019 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=00:40:36:4a:fd:62;CMTS-MAC=00:01:5c:77:e6:75;CM-QOS=1.1;CM-VER=3.1;
11:27:14
Mon Jul 29 2019 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=00:40:36:4a:fd:62;CMTS-MAC=00:01:5c:77:e6:75;CM-QOS=1.1;CM-VER=3.1;
11:29:00
Mon Jul 29 2019 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=00:40:36:4a:fd:62;CMTS-MAC=00:01:5c:77:e6:75;CM-QOS=1.1;CM-VER=3.1;
11:29:19
Mon Jul 29 2019 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:4a:fd:62;CMTS-MAC=00:01:5c:77:e6:75;CM-QOS=1.1;CM-VER=3.1;
11:29:29
Mon Jul 29 2019 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=00:40:36:4a:fd:62;CMTS-MAC=00:01:5c:77:e6:75;CM-QOS=1.1;CM-VER=3.1;
11:29:34
Mon Jul 29 2019 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:4a:fd:62;CMTS-MAC=00:01:5c:77:e6:75;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=00:40:36:4a:fd:62;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Time Not Established
Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:4a:fd:62;CMTS-MAC=00:01:5c:77:e6:75;CM-QOS=1.1;CM-VER=3.1;
02:15:52
Tue Jul 30 2019 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:4a:fd:62;CMTS-MAC=00:01:5c:77:e6:75;CM-QOS=1.1;CM-VER=3.1;
02:25:06
Tue Jul 30 2019 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:4a:fd:62;CMTS-MAC=00:01:5c:77:e6:75;CM-QOS=1.1;CM-VER=3.1;
02:27:26
Tue Jul 30 2019 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:4a:fd:62;CMTS-MAC=00:01:5c:77:e6:75;CM-QOS=1.1;CM-VER=3.1;
02:31:09
Tue Jul 30 2019 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:4a:fd:62;CMTS-MAC=00:01:5c:77:e6:75;CM-QOS=1.1;CM-VER=3.1;
02:31:14
Tue Jul 30 2019 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=00:40:36:4a:fd:62;CMTS-MAC=00:01:5c:77:e6:75;CM-QOS=1.1;CM-VER=3.1;
02:31:15
Tue Jul 30 2019 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:4a:fd:62;CMTS-MAC=00:01:5c:77:e6:75;CM-QOS=1.1;CM-VER=3.1;
02:31:26
Tue Jul 30 2019 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=00:40:36:4a:fd:62;CMTS-MAC=00:01:5c:77:e6:75;CM-QOS=1.1;CM-VER=3.1;
02:31:26
Tue Jul 30 2019 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:4a:fd:62;CMTS-MAC=00:01:5c:77:e6:75;CM-QOS=1.1;CM-VER=3.1;
02:31:42
Tue Jul 30 2019 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:4a:fd:62;CMTS-MAC=00:01:5c:77:e6:75;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=00:40:36:4a:fd:62;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Time Not Established
Notice (6) Honoring MDD; IP provisioning mode = IPv6
09:15:20
Tue Jul 30 2019 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=00:40:36:4a:fd:62;CMTS-MAC=00:01:5c:77:e6:75;CM-QOS=1.1;CM-VER=3.1;
09:15:20
Tue Jul 30 2019 Warning (5) Dynamic Range Window violation
09:15:20
Tue Jul 30 2019 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=00:40:36:4a:fd:62;CMTS-MAC=00:01:5c:77:e6:75;CM-QOS=1.1;CM-VER=3.1;
09:15:20
Tue Jul 30 2019 Warning (5) Dynamic Range Window violation
09:15:20
Tue Jul 30 2019 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=00:40:36:4a:fd:62;CMTS-MAC=00:01:5c:77:e6:75;CM-QOS=1.1;CM-VER=3.1;
09:15:20
Tue Jul 30 2019 Warning (5) Dynamic Range Window violation
09:15:47
Tue Jul 30 2019 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:4a:fd:62;CMTS-MAC=00:01:5c:77:e6:75;CM-QOS=1.1;CM-VER=3.1;
09:19:39
Tue Jul 30 2019 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:4a:fd:62;CMTS-MAC=00:01:5c:77:e6:75;CM-QOS=1.1;CM-VER=3.1;
09:19:45
Tue Jul 30 2019 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=00:40:36:4a:fd:62;CMTS-MAC=00:01:5c:77:e6:75;CM-QOS=1.1;CM-VER=3.1;
09:19:47
Tue Jul 30 2019 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:4a:fd:62;CMTS-MAC=00:01:5c:77:e6:75;CM-QOS=1.1;CM-VER=3.1;
09:20:04
Tue Jul 30 2019 Notice (6) Honoring MDD; IP provisioning mode =

Expert

Re: Daily Disconnections

Please also post the *Downstream Power Level*, the *Upstream Power Level*, and the *SNR* (Signal to Noise Ratio) numbers.






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Contributor

Re: Daily Disconnections

Heya. There is a link above the modem log says Signals.

Expert

Re: Daily Disconnections

Yep, missed it, sorry. But it is too blurried for me to be able to read it. Can it be cleared up somehow, hosted somewhere else, or the text / page just copied and pasted here ?


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Contributor

Re: Daily Disconnections

Motorola Cable Modem _ Status -_ Connection.png

Contributor

Re: Daily Disconnections

Currently have  2 days 05h:12m:18s  uptime. Good.

I did that factory reset then. Maybe that helped. Logs still look bad. 

Signals look the same. Lot of uncorrected. 

I also disabled network moitoring in my Asus RT-AC86U router. That may have helped too.

https://i.imgur.com/kk7TbKa.png

 

Contributor

Re: Daily Disconnections

Started gettting disconnections again.  Is is caused by the T3 timeouts? Are my signals ok?

Contributor

Re: Daily Disconnections

Here are sigs

Contributor

Re: Daily Disconnections

I need maintenence out here again. Still noise in this underground system. Ingrees maybe. 

I used to get packet loss from this noise. Now I just get disonnections everyday. T3s

 

Contributor

Re: Daily Disconnections


Signals

Expert

Re: Daily Disconnections

I'm going to escalate your issue to the Comcast corporate employees that are available to these boards. You should get a reply here in your topic. Good luck !



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Official Employee

Re: Daily Disconnections

Hey there, Anon8860457! I'm sorry to hear about the intermittent connectivity issues you're running into. I'd love to have the opportunity to review this further with you to find a resolution as fast as possible! Please send me a PM with your first and last name to get started. 

To send me a Private Message, please click my name “ComcastAlly” and click “Send a message.”


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Expert

Re: Daily Disconnections

I'm going to re-escalate your issue.



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Official Employee Digital Care

Re: Daily Disconnections

Greetings, Anon8860457! I appreciate you taking the time to reach out to us here on the forums. I hope you are having an amazing day. I apologize to hear you are still having issues with your internet services. We would like to look into this again for you. Can you please send a PM with your first and last name again so we can make sure this issue is being resolved for you?

 

To send a private message, please click the name "Comcast_Support" then select "Send a Message" on the right side.


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