NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
C7000 – Nighthawk AC1900 WiFi Cable Modem Router--Losing connection once a day requiring full reset
Hello, I purchased my modem in August 2015 and it was working fine unitl June 2015 timeframe when I started experiencing minor connection issues (internet drops for few minutes). However, now i...
Hello Zoroast78
Are you seeing any errors happening on the modem when it drops out you can look in the logs if so could you post them here.
DarrenM
Time Priority Description 1970-1-1, 00:00:38 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0; 1970-1-1, 00:00:44 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.0;CM-VER=3.0; 2016-9-10, 10:37:19 Critical (3) Resetting the cable modem due to docsDevResetNow 1970-1-1, 00:00:37 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0; 1970-1-1, 00:00:44 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.0;CM-VER=3.0; 1970-1-1, 00:00:39 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0; 2016-9-14, 13:17:42 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 1970-1-1, 00:00:39 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0; 1970-1-1, 00:00:41 Notice (6) WiFi Interface [wl0] set to Channel 11 (Side-Band Channel:N/A) - Reason:INIT 1970-1-1, 00:00:41 Notice (6) WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INTERFERENCE 1970-1-1, 00:00:46 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.0;CM-VER=3.0; 1970-1-1, 00:00:49 Notice (6) Honoring MDD; IP provisioning mode = IPv6 2016-9-14, 13:52:40 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:52:44 Warning (5) MDD message timeout;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:52:45 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:52:51 Warning (5) MDD message timeout;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:52:52 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:54:04 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:54:05 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:54:36 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:54:38 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:54:42 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:54:43 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:54:48 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:54:50 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:54:55 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:54:56 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:55:01 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:55:11 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:55:13 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:55:14 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:55:15 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:55:21 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:55:24 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:55:25 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:55:26 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:55:28 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:55:32 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:56:01 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=50:6a:03:7f:2f:b0;CMTS-MAC=00:01:5c:72:62:69;CM-QOS=1.1;CM-VER=3.0; 2016-9-14, 13:56:51 Notice (6) Honoring MDD; IP provisioning mode = IPv6