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Re: SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing Error

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Re: SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing Error

Issue has been going on for months.  Im wearing out technicians!

Can you help

 

 Time Not Established   Critical (3)   No Ranging Response received - T3 time-out;CM-MAC=00:40:36:4b:3e:c0;CMTS-MAC=00:01:5c:88:08:48;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=00:40:36:4b:3e:c0;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=00:40:36:4b:3e:c0;CMTS-MAC=00:01:5c:88:08:48;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=00:40:36:4b:3e:c0;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=00:40:36:4b:3e:c0;CMTS-MAC=00:01:5c:88:08:48;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=00:40:36:4b:3e:c0;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=00:40:36:4b:3e:c0;CMTS-MAC=00:01:5c:88:08:48;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=00:40:36:4b:3e:c0;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=00:40:36:4b:3e:c0;CMTS-MAC=00:01:5c:88:08:48;CM-QOS=1.1;CM-VER=3.1;" 
 Sat Dec 16 17:59:29 2017    Critical (3)   SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=00:40:36:4b:3e:c0;CMTS-MAC=00:01:5c:88:08:48;CM-QOS=1.1;CM-VER=3.1;" 
 Sat Dec 16 17:59:33 2017    Critical (3)   SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:40:36:4b:3e:c0;CMTS-MAC=00:01:5c:88:08:48;CM-QOS=1.1;CM-VER=3.1;" 
 Sat Dec 16 17:59:39 2017    Critical (3)   SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:40:36:4b:3e:c0;CMTS-MAC=00:01:5c:88:08:48;CM-QOS=1.1;CM-VER=3.1;" 
 Sat Dec 16 17:59:41 2017    Critical (3)   SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:40:36:4b:3e:c0;CMTS-MAC=00:01:5c:88:08:48;CM-QOS=1.1;CM-VER=3.1;" 
 Sat Dec 16 18:04:24 2017    Critical (3)   SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=00:40:36:4b:3e:c0;CMTS-MAC=00:01:5c:88:08:48;CM-QOS=1.1;CM-VER=3.1;" 
 Sat Dec 16 18:04:28 2017    Critical (3)   SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:40:36:4b:3e:c0;CMTS-MAC=00:01:5c:88:08:48;CM-QOS=1.1;CM-VER=3.1;" 
 Sat Dec 16 18:04:34 2017    Critical (3)   SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:40:36:4b:3e:c0;CMTS-MAC=00:01:5c:88:08:48;CM-QOS=1.1;CM-VER=3.1;" 
 Sat Dec 16 18:07:56 2017    Critical (3)   SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:40:36:4b:3e:c0;CMTS-MAC=00:01:5c:88:08:48;CM-QOS=1.1;CM-VER=3.1;" 
 Sat Dec 16 18:07:56 2017    Critical (3)   Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:4b:3e:c0;CMTS-MAC=00:01:5c:88:08:48;CM-QOS=1.1;CM-VER=3.1;" 
 Sat Dec 16 18:07:57 2017    Critical (3)   SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:40:36:4b:3e:c0;CMTS-MAC=00:01:5c:88:08:48;CM-QOS=1.1;CM-VER=3.1;" 
 Sat Dec 16 18:07:57 2017    Critical (3)   Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:4b:3e:c0;CMTS-MAC=00:01:5c:88:08:48;CM-QOS=1.1;CM-VER=3.1;" 
 Sat Dec 16 18:07:57 2017    Critical (3)   SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:40:36:4b:3e:c0;CMTS-MAC=00:01:5c:88:08:48;CM-QOS=1.1;CM-VER=3.1;" 
 Sat Dec 16 18:07:57 2017    Critical (3)   Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:4b:3e:c0;CMTS-MAC=00:01:5c:88:08:48;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=00:40:36:4b:3e:c0;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=00:40:36:4b:3e:c0;CMTS-MAC=00:01:5c:88:08:48;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=00:40:36:4b:3e:c0;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=00:40:36:4b:3e:c0;CMTS-MAC=00:01:5c:88:08:48;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=00:40:36:4b:3e:c0;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=00:40:36:4b:3e:c0;CMTS-MAC=00:01:5c:88:08:48;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=00:40:36:4b:3e:c0;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=00:40:36:4b:3e:c0;CMTS-MAC=00:01:5c:88:08:48;CM-QOS=1.1;CM-VER=3.1;" 
 Time Not Established   Notice (6)   Honoring MDD; IP provisioning mode = IPv6" 
 Sun Dec 17 08:18:42 2017    Notice (6)   TLV-11 - unrecognized OID;CM-MAC=00:40:36:4b:3e:c0;CMTS-MAC=00:01:5c:88:08:48;CM-QOS=1.1;CM-VER=3.1;" 

 

 

Expert

Re: SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing Error

Please post the *Downstream Power Level*, the *Upstream Power Level*, and the *SNR* (Signal to Noise Ratio) numbers as well.





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Re: SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing Error