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flitzanu's avatar
flitzanu
New Contributor II
7 years ago

T4 errors / constant disconnects

anyone experiencing these, or getting constant disconnects over the past 6 months? Motorola MB8600. running a 5 second ping connection test, so far i have 23 disconnects in less than 24 hours. ...
KreepLV's avatar
KreepLV
New Contributor
7 years ago

You are NOT alone. I have experienced the same problems for over two years. I connected my old cable modem to see if that was it. Had problems with that and they told me the cable modem failed and they provisioned my new one incorrectly. I threw the old one away and reconnected it with the newer DOCSIS 3.0 one. The problems continued on and off the entire time I have been at my residence.

We also have regular outages, which we are having another one for a 2nd day in a row right now. Terrible service in my area! I can't believe it, but I am actually considering DSL. I would rather have a lower speed stable connection than this high-speed intermittent connection. I mean, how much do you want to bet the same piece of local equipment is failing over and over again? You would think after the same area having outages so often, a senior tech would investigate why it is happening so often to try to come up with a long-term solution. It almost feels like they don't track that at all! 

BTW: My logs are due to the outage. Otherwise, I normally get the T4 and IPV4 timeout issues as the original poster. The installer placed my splitter in a keyed box. I guess I'll have to look at that the next time I have issues. 

Here are my logs:

2018-4-6, 19:15:58 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=b0:7f:b9:2d:54:10;CMTS-MAC=28:52:61:29:d6:43;CM-QOS=1.1;CM-VER=3.0;
2018-4-6, 19:16:02 Warning (5) MDD message timeout;CM-MAC=b0:7f:b9:2d:54:10;CMTS-MAC=28:52:61:29:d6:43;CM-QOS=1.1;CM-VER=3.0;
2018-4-6, 19:18:38 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=b0:7f:b9:2d:54:10;CMTS-MAC=28:52:61:29:d6:43;CM-QOS=1.1;CM-VER=3.0;
2018-4-6, 19:18:41 Warning (5) MDD message timeout;CM-MAC=b0:7f:b9:2d:54:10;CMTS-MAC=28:52:61:29:d6:43;CM-QOS=1.1;CM-VER=3.0;
2018-4-6, 19:21:26 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=b0:7f:b9:2d:54:10;CMTS-MAC=28:52:61:29:d6:43;CM-QOS=1.1;CM-VER=3.0;
2018-4-6, 19:21:29 Warning (5) MDD message timeout;CM-MAC=b0:7f:b9:2d:54:10;CMTS-MAC=28:52:61:29:d6:43;CM-QOS=1.1;CM-VER=3.0;
2018-4-6, 19:21:30 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=b0:7f:b9:2d:54:10;CMTS-MAC=28:52:61:29:d6:43;CM-QOS=1.1;CM-VER=3.0;
2018-4-6, 19:21:33 Warning (5) MDD message timeout;CM-MAC=b0:7f:b9:2d:54:10;CMTS-MAC=28:52:61:29:d6:43;CM-QOS=1.1;CM-VER=3.0;