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Internet goes down multiple times a day

Jmarple
Frequent Visitor

Internet goes down multiple times a day

Hello,  I'm desperate for help.

 

my internet connection goes down multiple times a day and I'm beyond frustrated.  I have an Arris Surfboard modem  SB6183 and a TPLink mesh network (S4).  

I've replaced both modem and mesh equipment and nothing helped.  I moved the equipment to connnect to the coax that comes into the house from the street.  That didn't help.  

I've tried everything I know to do and still, this keeps happening and has been going on for months now.  Please help me figure this out, Comcast is my only option for internet. 

BruceW
Gold Problem Solver

Re: Internet goes down multiple times a day

Are you connecting via Wifi or Ethernet? If Wifi, it's best to switch to an Ethernet cable connection if possible. That would allow you to determine whether the problem is the Wifi signal or the link between your equipment and Comcast's network. Network connection problems that affect both Ethernet and Wifi devices are often due to poor coax connections or damaged coax cable, usually in or near your home.

If you want to troubleshoot this yourself, please see Internet Troubleshooting Tips. If you still need help, please post your modem or gateway's model number and signal information, especially downstream power levels and SNR, upstream power levels, and error log.

If you can't find the problem or you'd rather have Comcast take care of it, call them at the phone number on your bill or 1-800-Comcast, or use one of the options on https://www.xfinity.com/support/contact-us/. If they can't fix the problem remotely, insist they send a tech out to identify the cause and correct it.

If the tech finds bad coax, splitters, amplifiers, or connections in your home (even if Comcast originally supplied them) you'll probably have to pay for the visit unless you have their Service Protection Plan (https://www.xfinity.com/support/articles/service-protection-plan, closed to customers that don't already have it). If the trouble is due to a faulty Comcast rental device, or anything outside your home, you shouldn't be charged.

Jmarple
Frequent Visitor

Re: Internet goes down multiple times a day

Hi @BruceW ,

 

I'll post logs tomorrow so I can try to do this myself.  

 

If the typical network connection problems are related to poor coax connections or damaged coax cable, then it has to be outside because right now, the modem is connected to the coax that comes into the house. 

With respect to the Internet Troubleshooting Tips:


* I have restarted the modem so many times to get my network back online I can't even count any more.

 

* There are no network interruptions and my equipment is all compatible and current.

 

* The issues are modem/ signal based, not wi-fi / router based.

 

I'll  check signal levels and post logs tomorrow.  Looking forward to your thoughts!  

 

 

Jmarple
Frequent Visitor

Re: Internet goes down multiple times a day

@BruceW 

 

Here are my signal levels...

 

Startup Procedure

ProcedureStatusComment
Acquire Downstream Channel Locked
Connectivity StateOKOperational
Boot StateOKOperational
Configuration FileOK 
SecurityEnabledBPI+
DOCSIS Network Access EnabledAllowed 

 

 
Downstream Bonded Channels
ChannelLock StatusModulationChannel IDFrequencyPowerSNRCorrectedUncorrectables
1LockedQAM25611489000000 Hz-13.9 dBmV36.1 dB00
2LockedQAM2561405000000 Hz-12.1 dBmV37.0 dB00
3LockedQAM2562411000000 Hz-12.0 dBmV37.0 dB00
4LockedQAM2563417000000 Hz-12.2 dBmV37.0 dB00
5LockedQAM2564423000000 Hz-12.5 dBmV36.9 dB00
6LockedQAM2565453000000 Hz-13.5 dBmV36.5 dB00
7LockedQAM2566459000000 Hz-13.6 dBmV36.4 dB00
8LockedQAM2567465000000 Hz-13.4 dBmV36.5 dB00
9LockedQAM2568471000000 Hz-13.3 dBmV36.4 dB00
10LockedQAM2569477000000 Hz-13.3 dBmV36.4 dB00
11LockedQAM25610483000000 Hz-13.5 dBmV36.3 dB00
12LockedQAM25612495000000 Hz-13.8 dBmV36.0 dB00
13LockedQAM25613519000000 Hz-13.2 dBmV35.3 dB00
14LockedQAM25614525000000 Hz-13.7 dBmV35.9 dB00
15LockedQAM25615531000000 Hz-13.7 dBmV35.9 dB00
16LockedQAM25616537000000 Hz-13.7 dBmV35.8 dB00

 

 
Upstream Bonded Channels
ChannelLock StatusUS Channel TypeChannel IDSymbol RateFrequencyPower
1LockedATDMA365120 Ksym/sec36500000 Hz53.3 dBmV
2LockedATDMA335120 Ksym/sec17300000 Hz52.5 dBmV
3LockedATDMA345120 Ksym/sec23700000 Hz52.8 dBmV
4LockedATDMA355120 Ksym/sec30100000 Hz53.8 dBmV



Jmarple
Frequent Visitor

Re: Internet goes down multiple times a day

I also checked the event log which shows a ton of critical errors.... how do I address these??

 

 

Event Log

The table below contains the log of events that the SB6183 has detected. This log can be important to the service provider to help diagnose and correct problems, if any should occur.

 
Time Priority Description
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Sun Aug 02 18:15:37 2020Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.1;CM-VER=3.0;
Sun Aug 02 18:15:37 2020Critical (3)Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.1;CM-VER=3.0;
Sun Aug 02 18:15:37 2020Critical (3)16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.1;CM-VER=3.0;
Sun Aug 02 18:16:29 2020Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.1;CM-VER=3.0;
Sun Aug 02 18:16:29 2020Critical (3)Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.1;CM-VER=3.0;
Sun Aug 02 18:16:29 2020Critical (3)16 consecutive T3 timeouts while trying to range on upstream channel 1;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.1;CM-VER=3.0;
Sun Aug 02 18:17:08 2020Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.1;CM-VER=3.0;
Sun Aug 02 18:21:28 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.1;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Sun Aug 02 18:41:59 2020Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.1;CM-VER=3.0;
Sun Aug 02 18:41:59 2020Critical (3)Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.1;CM-VER=3.0;
Sun Aug 02 18:41:59 2020Critical (3)16 consecutive T3 timeouts while trying to range on upstream channel 0;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.1;CM-VER=3.0;
Sun Aug 02 18:42:20 2020Critical (3)No Ranging Response received - T3 time-out
Sun Aug 02 18:42:30 2020Critical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Sun Aug 02 18:42:48 2020Critical (3)TLV-11 - Illegal Set operation failed;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.1;CM-VER=3.0;
Sun Aug 02 18:44:15 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.1;CM-VER=3.0;
Sun Aug 02 18:44:59 2020Critical (3)No Ranging Response received - T3 time-out
Sun Aug 02 18:45:09 2020Critical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Sun Aug 02 18:45:26 2020Critical (3)TLV-11 - Illegal Set operation failed;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.1;CM-VER=3.0;
Sun Aug 02 19:10:18 2020Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.1;CM-VER=3.0;
Sun Aug 02 19:14:34 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.1;CM-VER=3.0;
Mon Aug 03 02:26:59 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.1;CM-VER=3.0;
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Time Not EstablishedCritical (3)No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.0;CM-VER=3.0;
Mon Aug 03 09:06:16 2020Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.1;CM-VER=3.0;
Mon Aug 03 09:11:05 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.1;CM-VER=3.0;
Mon Aug 03 09:20:24 2020Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.1;CM-VER=3.0;
Mon Aug 03 09:24:44 2020Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=f8:a0:97:b5:ee:01;CMTS-MAC=00:01:5c:6e:92:4c;CM-QOS=1.1;CM-VER=3.0;
Time Not EstablishedNotice (6)
BruceW
Gold Problem Solver

Re: Internet goes down multiple times a day


@Jmarple wrote: ... Here are my signal levels...

The power levels are out of spec. Downstream is too low, and Upstream is too high. The error log entries are most likely the result of these signal problems.

 

If you cannot fix this yourself you should have Comcast take care of it as stated above.

Jmarple
Frequent Visitor

Re: Internet goes down multiple times a day

How do I adjust the power levels, down stream, up stream? Is there a guide here that I missed @BruceW ?

 

BruceW
Gold Problem Solver

Re: Internet goes down multiple times a day


@Jmarple wrote: ... How do I adjust the power levels, down stream, up stream? ...

Please see the "Inspect cabling", "Check F-Connectors", and "Check the quality/status of all splitters" sections of Internet Troubleshooting Tips. If you can't fix it, call Comcast.