New Contributor
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3 Messages
Intermittent connection loss with CM400
I have been having intermittent problems for the last 3 days, internet randomly drops from all wired and wireless devices after
around 5 minutes or so. Plugged directly into my computer or through the wireless router it makes no difference. I am using a
CM400 and Archer TP Link C7. A tech came out and it happened to be working when he was here, he said the levels looked fine. I
attached some logs from the Modem, any help is appreciated. The modem is about 4 months old and has had 0 other issues.
The attached logs are after the modem was online for approximately 10 minutes. Thank you again.
| Time | Priority | Description |
| Time Not Established | Critical (3) | No Ranging Response received - T3 time-out |
| Apr 26 22:38:02 2017 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Apr 26 22:38:02 2017 | Notice (6) | TLV-11 - unrecognized OID |
| Apr 26 22:39:13 2017 | Error (4) | RCP-ID in RCC not supported |
| Apr 26 23:05:08 2017 | Critical (3) | SYNC Timing Synchronization failure - Loss of Sync |
| Apr 26 23:05:12 2017 | Warning (5) | Lost MDD Timeout |
| Apr 26 23:06:48 2017 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Apr 26 23:06:48 2017 | Notice (6) | TLV-11 - unrecognized OID |
| Apr 27 08:09:26 2017 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Apr 27 08:09:26 2017 | Notice (6) | TLV-11 - unrecognized OID |
| Apr 27 21:11:01 2017 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Apr 27 21:11:01 2017 | Notice (6) | TLV-11 - unrecognized OID |
| Apr 27 21:12:10 2017 | Error (4) | RCP-ID in RCC not supported |
| Apr 27 21:43:08 2017 | Warning (5) | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 |
| Apr 27 21:43:08 2017 | Notice (6) | TLV-11 - unrecognized OID |
| Apr 27 21:44:18 2017 | Error (4) | RCP-ID in RCC not supported |
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ChrisL
Former Moderator
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7.1K Messages
I'm not seeing any new events logged by the modem since this and it's reporting good signal levels. If you're still having problems I'd start with a basic direct to modem test and go from there depending on your results.
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Jesse_M_
New Contributor
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3 Messages
Nothing but problems since, probably lost connection 20-30 times since this post.
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DeeJ1
Former Moderator
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129 Messages
Hello Jesse,
Sounds like we may need to have a tech come out. Would you like for me to schedule a technician visit?
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ChrisL
Former Moderator
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7.1K Messages
Service call charges are ultimately applied based on the technician's findings. We do also offer our Cox Service Protection Plan for a small monthly charge which covers troubleshooting of any problem that may be found originating from inside of the home such as wiring, modem troubleshooting, etc.
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