I have actually my cable modem in the basement. Coax comes straight in from package mounted on the ago of my house. It is coming in via a sealed hole, so it will certainly not be trivial to rearea the coax cable. I have actually around 4 coax jack active in the residence, however just 2 have somepoint plugged into them. The jack in the basement through the cable modem, and the jack in the family room with a cablecard tuner.


You are watching: Sync timing synchronization failure - loss of sync


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I"ve noticed difficulties through connectivity eextremely few days, and also the cable modem logs show:
Sep 22 2013 18:24:16 3-Critical T05.0 SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=00:23:74:f3:3a:12;CMTS-MAC=00:01:5c:23:cf:d6;CM-QOS=1.1;CM-VER=3.0;Sep 22 2013 17:44:36 5-Warning Z00.0 MIMO Event MIMO: Stored MIMO=-1 write-up cfg file MIMO=-1;CM-MAC=00:23:74:f3:3a:12;CMTS-MAC=00:01:5c:23:cf:d6;CM-QOS=1.1;CM-VER=3.0;Jan 01 1970 00:00:13 6-Notice N/A Cable Modem Reboot because of T4 timeout ;CM-MAC=00:23:74:f3:3a:12;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.0;Sep 22 2013 17:43:46 3-Critical R04.0 Received Response to Broadactors Maintenance Research, But no Unicast Maintenance avenues received - T4 time out;CM-MAC=00:23:74:f3:3a:12;CMTS-MAC=00:01:5c:23:cf:d6;CM-QOS=1.1;CM-VER=3.0;Sep 22 2013 17:43:26 3-Critical T05.0 SYNC Timing Synchronization faiattract - Loss of Sync;CM-MAC=00:23:74:f3:3a:12;CMTS-MAC=00:01:5c:23:cf:d6;CM-QOS=1.1;CM-VER=3.0;Sep 22 2013 10:18:34 5-Warning Z00.0 MIMO Event MIMO: Stored MIMO=-1 write-up cfg file MIMO=-1;CM-MAC=00:23:74:f3:3a:12;CMTS-MAC=00:01:5c:23:cf:d6;CM-QOS=1.1;CM-VER=3.0;Jan 01 1970 00:00:13 6-Notice N/A Cable Modem Reboot as a result of power recollection ;CM-MAC=00:23:74:f3:3a:12;CMTS-MAC=00:01:5c:23:cf:d6;CM-QOS=1.1;CM-VER=3.0;Sep 22 2013 10:17:29 5-Warning Z00.0 MIMO Event MIMO: Stored MIMO=-1 write-up cfg file MIMO=-1;CM-MAC=00:23:74:f3:3a:12;CMTS-MAC=00:01:5c:23:cf:d6;CM-QOS=1.1;CM-VER=3.0;Sep 22 2013 10:17:03 4-Error T06.0 RCS Main DS Failure;CM-MAC=00:23:74:f3:3a:12;CMTS-MAC=00:01:5c:23:cf:d6;CM-QOS=1.1;CM-VER=3.0;Sep 22 2013 10:17:03 3-Critical T04.0 SYNC Timing Synchronization faientice - Faibrought about obtain MAC SYNC framework within time-out period;CM-MAC=00:23:74:f3:3a:12;CMTS-MAC=00:01:5c:23:cf:d6;CM-QOS=1.1;CM-VER=3.0;Sep 22 2013 10:17:02 3-Critical R02.0 No Ranging Response obtained - T3 time-out;CM-MAC=00:23:74:f3:3a:12;CMTS-MAC=00:01:5c:23:cf:d6;CM-QOS=1.1;CM-VER=3.0;Sep 22 2013 10:17:02 5-Warning Z00.0 MIMO Event MIMO: Stored MIMO=-1 article cfg file MIMO=-1;CM-MAC=00:23:74:f3:3a:12;CMTS-MAC=00:01:5c:23:cf:d6;CM-QOS=1.1;CM-VER=3.0;Sep 22 2013 10:16:43 4-Error T06.0 RCS Main DS Failure;CM-MAC=00:23:74:f3:3a:12;CMTS-MAC=00:01:5c:23:cf:d6;CM-QOS=1.1;CM-VER=3.0;Sep 22 2013 10:16:43 3-Critical T04.0 SYNC Timing Synchronization failure - Faibrought about receive MAC SYNC structure within time-out period;CM-MAC=00:23:74:f3:3a:12;CMTS-MAC=00:01:5c:23:cf:d6;CM-QOS=1.1;CM-VER=3.0;Sep 22 2013 10:16:42 5-Warning Z00.0 MIMO Event MIMO: Stored MIMO=-1 article cfg file MIMO=-1;CM-MAC=00:23:74:f3:3a:12;CMTS-MAC=00:01:5c:23:cf:d6;CM-QOS=1.1;CM-VER=3.0;Sep 22 2013 10:16:19 4-Error T06.0 RCS Key DS Failure;CM-MAC=00:23:74:f3:3a:12;CMTS-MAC=00:01:5c:23:cf:d6;CM-QOS=1.1;CM-VER=3.0;Sep 22 2013 10:16:19 3-Critical T04.0 SYNC Timing Synchronization faientice - Failed to get MAC SYNC frame within time-out period;CM-MAC=00:23:74:f3:3a:12;CMTS-MAC=00:01:5c:23:cf:d6;CM-QOS=1.1;CM-VER=3.0;Sep 22 2013 10:16:18 5-Warning Z00.0 MIMO Event MIMO: Stored MIMO=-1 write-up cfg file MIMO=-1;CM-MAC=00:23:74:f3:3a:12;CMTS-MAC=00:01:5c:23:cf:d6;CM-QOS=1.1;CM-VER=3.0;Sep 22 2013 10:15:54 4-Error T06.0 RCS Main DS Failure;CM-MAC=00:23:74:f3:3a:12;CMTS-MAC=00:01:5c:23:cf:d6;CM-QOS=1.1;CM-VER=3.0;Sep 22 2013 10:15:54 3-Critical T04.0 SYNC Timing Synchronization faientice - Failed to get MAC SYNC framework within time-out period;CM-MAC=00:23:74:f3:3a:12;CMTS-MAC=00:01:5c:23:cf:d6;CM-QOS=1.1;CM-VER=3.0;
These are commonly reresolved on their very own, or by rebooting the cable modem (SB 6120)Attached are my signal strengths:

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I have the Comactors 50/10 service, and the techs shelp everything looks OK on their finish. Before I go ripping the cable out of the wall, perform my logs show whether this is a cable modem faientice or not? We don"t usage the cable TV service incredibly regularly, so I can not really tell if it is impacted or not.