Question Frequent T3 timeouts throughout the day

[treyfive35]

For about 6 months now my modem has been experiencing T3 timeouts. They last anywhere from 30 min to 2 hours and almost always happen between the hours of 10-12 am in the morning, the connection will stay relatively stable throughout the afternoon (I sometimes get T3 timeouts during this period as well) and again between the hours of 10-12 pm in the evening. This happens every single day and it's unbearable at times. During the time of disruptions, the connection and speeds are just fine for ~15 seconds and then the connection drops, usually for ~10 seconds . This cycles back and forth for 2 hours at most.
Ping requests from the cmd usually show 3 consecutive "request timed out" messages before picking back up. My upstream power levels are generally between 26-29 dBmV but can randomly shoot up to about 49 for a quick second when the connection drops. My coax cable and modem are about 10 years old and have definitely ran their course. With this being said, I still couldn't identify any physical damage to the coax just by looking at it and the modem also looks fine. There's only one splitter on the line. Should I maybe call a tech to come change the whole coax line and the splitter? Could this be an issue that is outside my home? I am in desperate need of help.
I have a Thomson THG540 cable modem.
Log:
10/26/2020 23.44 82000500 03 Started Unicast Maintenance Ranging - No Response received - T3 time-out 10/26/2020 19.28 68010300 05 DHCP RENEW WARNING - Field invalid in response 10/26/2020 12.58 82000500 03 Started Unicast Maintenance Ranging - No Response received - T3 time-out 10/26/2020 07.28 68010300 05 DHCP RENEW WARNING - Field invalid in response 10/26/2020 00.49 82000500 03 Started Unicast Maintenance Ranging - No Response received - T3 time-out

 

[SamirD]

You are lucky enough to have a consistent problem--simply call your support when the connection is flaky and let them run a ping from their side and they'll notice the signal issue and get someone out to fix it.

 

[treyfive35]

You are lucky enough to have a consistent problem--simply call your support when the connection is flaky and let them run a ping from their side and they'll notice the signal issue and get someone out to fix it.

Thank you for the advice, I'll make sure to do that.

 

[VirtualLarry]

Also, consider checking out www.dslreports.com , they are among the oldest forums on the internet, like this site, but they are more specialized for broadband issues, and have many industry forums and cable technology specialists that post there every day. (People that work on this stuff for a living.)

Not saying that there aren't any here on Anandtech, but this forum is a bit more general-purpose, and more oriented around computer tech-support and building. (And check out our social forums like Off Topic, and Hot Deals.)

Anyways, I hope that after you check out dslreports, that you will return here, we have a pretty friendly crew. (They do too.)