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Forum Discussion
Random Internet Disconnection on Both Wi-fi and Wired (CM1200 Modem)
I purchased the CM1200 modem back in March of this year and haven't had an issue with until the past month and a half. I'm having an issue where my internet will randomly disconnect on both Wired and...
log into the modem and get a screen snip of the cable connection page and the logs and post them back here.
Also, if you have any splitters, attenuators, or amplifiers in line, remove them and direct connect the modem.
I'm not sure how to attach multiple things so I hope an Imgur link of the screenshots is ok: CM1200 Screenshots
Here is at least the event log if you're not ok with that.
Thanks!
Time Priority Description
Fri Jun 19 10:00:22 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 10:00:22 2020 Warning (5) RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 10:00:22 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 10:00:22 2020 Warning (5) RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 10:00:22 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 10:00:22 2020 Warning (5) RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 10:00:22 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 10:00:22 2020 Warning (5) RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:54:56 2020 Notice (6) CM-STATUS message sent. Event Type Code: 24; Chan ID: 25; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1 2 3.;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:54:30 2020 Notice (6) CM-STATUS message sent. Event Type Code: 16; Chan ID: 25; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:36:52 2020 Notice (6) CM-STATUS message sent. Event Type Code: 8; Chan ID: 79 80; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:36:26 2020 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:36:26 2020 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:36:26 2020 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:35:39 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 09:35:39 2020 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:35:38 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 09:35:38 2020 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:35:37 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 09:35:37 2020 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:35:37 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 09:35:37 2020 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:35:37 2020 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:34:54 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 09:34:54 2020 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:34:54 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 09:34:54 2020 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:34:54 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 09:34:54 2020 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:34:54 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 09:34:54 2020 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:34:54 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 09:34:54 2020 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:34:36 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 09:34:36 2020 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:34:36 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 09:34:36 2020 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:34:36 2020 Warning (5) Dynamic Range Window violation
Fri Jun 19 09:34:36 2020 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=28:80:88:b3:1f:d0;CMTS-MAC=00:01:5c:79:10:69;CM-QOS=1.1;CM-VER=3.1;
Fri Jun 19 09:34:35 2020 Warning (5) Dynamic Range Window violationYou have t3 errors and power fluctuation errors. The snip just shows in the time the page was loaded but from looking at your log, the power must be spiking/dropping.
If you didn't check your line and remove amplifiers, splitters, attenuators, do it now. If you already have, then I'd have your isp check your line.
I don't have any extra stuff like that added on. Looks like another call to my ISP! Hopefully that gets it resolved. Thanks for the advice!
I would have the isp check the line.
When you load the cable connection page, it just shows the values at tthe time it was loaded. But your logs show range violations, power exceeds notices, and t3 errors. Its usually a sign that power is spiking/dropping and causing issues.
- I just got confirmation of a modem being sent to me. I'm going to wait for that to see if it resolves the issue. My ISP just replaced the lines anyways and said they should be good now.