ContributionsMost RecentMost LikesSolutionsRe: Internet disconnects for 10-15 seconds several times an hour. My Arris SB8200 is on firmware version AB01.02.053.05_051921_193.0A.NSH Is that the most recent? Re: Internet disconnects for 10-15 seconds several times an hour. No, but I can watch for that. (It's two floors down from me.) Is there any resolution to it? Is Cox aware of these issues and fixing them as they go? Do I need to call them and reference some article or something? Re: Internet disconnects for 10-15 seconds several times an hour. Yes, I'm in Connecticut. I did verify those error messages appear when ping shows a disconnect. There is a single ODFM upstream channel. Re: Internet disconnects for 10-15 seconds several times an hour. Yes, I'm in Connecticut. I did verify those error messages appear when ping shows a disconnect. There is a single ODFM upstream channel. Re: Internet disconnects for 10-15 seconds several times an hour. Yes. Re: Internet disconnects for 10-15 seconds several times an hour. Yes, in addition to 4 SC-QAM upstream channels there's a single ODFM upstream channel. Edit: The line is directly from the street to the modem. Re: Internet disconnects for 10-15 seconds several times an hour. I'll need to run continuous ping and then cross-reference, but I'd bet a small sum of money the timestamps match. I'm in Connecticut. I read through that post and a few similar ones, but none of them seemed to indicate a solution. Any ideas? (Thank you for the responses, by the way - I really appreciate it!). Edit: Confirmed. I just had a ping timeout at 12:20pm EST and these messages in the modem's event log: 03/04/2023 12:20 82000400 3 "Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;" 03/04/2023 12:19 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;" 03/04/2023 12:19 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;" 03/04/2023 12:19 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;" Re: Internet disconnects for 10-15 seconds several times an hour. And another: 03/04/2023 12:03 2436694061 5 "Dynamic Range Window violation" 03/04/2023 12:03 82001100 5 "RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;" 03/04/2023 12:03 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;" Re: Internet disconnects for 10-15 seconds several times an hour. Here's another example: 03/04/2023 12:03 84000500 3 "SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;" Re: Internet disconnects for 10-15 seconds several times an hour. The forum software is flagging my response as "spam". I am seeing some errors: 03/04/2023 12:03 82000200 3 "No Ranging Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"