Recent drops in internet service
About two weeks ago, we had a tree fall and take down wires after a storm. My COX service was out for about 3 days. Eventually, crews came and apparently replaced wires to return service. Since th...
Forum Discussion
Thu Nov 19 08:36:36 2020 - Warning (5) MDD message timeout;CM-MAC=78:96:84:e9:ee:53;CMTS-MAC=84:8a:8d:f0:c5:cb;CM-QOS=1.1;CM-VER=3.0;
Thu Nov 19 08:36:37 2020 - Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=78:96:84:e9:ee:53;CMTS-MAC=84:8a:8d:f0:c5:cb;CM-QOS=1.1;CM-VER=3.0;
These are definitely problematic. They appear to correspond to both upstream (T3) and downstream (MDD) issues. There's a tiny chance your modem is defective but that's actually quite rare. You should replace all interior cables with high quality brand new RG6 cables. If you do that and you still get these types of messages in the logs, there is a good chance that the problem lies outside of your house and possibly off of your property. I highly recommend following the instructions of the Cox moderator above and getting a technician scheduled. I've had many problems like this in the past, and it has never been my equipment. The problem has always been off of my property in the cable network.
Thank you Dave9. I am going to start with your advice.
First, I looked at the difficulty of replacing the coaxial cables. It looks like it should be easy. My local COX Solutions center is open this morning. I will see if I can get some new cable there.
If available, It also looks like I can easily replace the old cable running along the foundation of the house outside from the utility junction on the house to the single wall port, This is the worse looking of the cables. I would not be surprised if this cable has been under water during heavy rains over the past 20 years.
This also gives me the opportunity to place the cable modem and home router at a location closer to the cable entry in the home. Previously, when things like television needed to be directly attached, the cable was laid for 20 feet squeezed underneath floor trim boards. It would be nice to remove this as well. That only leaves the two work devices to be attached to the home router via ethernet. With some investigation, I think that with a longer CAT 6 cable and an unmanaged switch, I can run an ethernet line to these two devices easier than it would be to run a long coaxial cable again.
Finally, I will make contact with the COX help process and let them know what I have attempted already thanks to all the good advice on this forum. With any luck this will be a relatively simple solution to the issue.
I would almost guarantee it's not in your house, it's most likely outside plant issues.. I've been through this for years. Check you upload dBmv. Most likely out of your Gateway parameters or due to a lack excessive plant noise remission. In other words BAD line maintenance.
