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Forum Discussion
CM1000 - questions about some issues after 14 months
I have a CM1000 coupled with an Orbi CRB40 -
ISP is comcast - they came out last week and removed the inside the basement amplifier and all inside splitters because since i cut the cord i stream everything and only use 1 line into the attic that drops into the 2nd floor office for the 1 gig internet service.
since that visit internet has dropped 3x.....i doubt if the cm1000 just started acting funky after 14 months? after i reboot the modem and the orbi things are fine.
i had to pay for that original comcast visit - i could have 'fibbed' and said service was bad but i just wanted the lines identified so i can clean up all the extra comcast stuff coming in the house prior to a new home siding project planned.
Comcast is coming back for free....i am thinking the line is still split outside and without the amplifier it drops occasionally......i guess the fix willl be to tell the guy to remove the split and then send him to the attic if readings are still funky, also the attic is split 4 ways since i used to run lines to each bedroom, now its just streaming off wifi with no issues, so i may need to send him up into my attic anyway (not the easiest to get into)
if all is good then i may have to get another 1gb or better modem.....but this one is only 14 months old...
just wondering if anyone has seen CM1000 failure after 14 months.
12 Replies
The cm1000 has been a pretty solid reliable modem.
but anything can fail in 14 months. Its always possible.
Do you have a screen snip of the cable connection page and the event logs from the modem?
continues to drop and then restarts - did it 2x today 4/26 - but had not dropped since 4/23 - here is a some of the event log -
2021-04-26, 18:01:37 Notice (6) DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=28:80:88:aa:b3:10;CMTS-MAC=00:01:5c:7a:9c:64;CM-QOS=1.1;CM-VER=3.1; Time Not Established Notice (6) Honoring MDD; IP provisioning mode = IPv6 Time Not Established Critical (3) No Ranging Response received - T3 time-out;CM-MAC=28:80:88:aa:b3:10;CMTS-MAC=00:01:5c:7a:9c:64;CM-QOS=1.1;CM-VER=3.1; Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=28:80:88:aa:b3:10;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1; Time Not Established Critical (3) No Ranging Response received - T3 time-out;CM-MAC=28:80:88:aa:b3:10;CMTS-MAC=00:01:5c:7a:9c:64;CM-QOS=1.1;CM-VER=3.1;
