NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.

Forum Discussion

jk320's avatar
jk320
Aspirant
Dec 01, 2020

c7000 dropping wifi

My modem/router is frequently unable to get internet/wifi signal to random things in the house. Sometimes its my computer, other times fire TV, etc. This is happening more frequently than ever. Usual...
jk320's avatar
jk320
Aspirant
Dec 02, 2020

I notice the 5ghz signal only becauase my smart TVs are on it. My computer is also usually on 5ghz which I notice the most. 

Startup Procedure
ProcedureStatusComment
Acquire Downstream Channel537000000 HzLocked
Connectivity StateOKOperational
Boot StateOKOperational
SecurityEnabledBPI+
IP Provisioning ModeHonor MDDhonorMdd(4)
 
Downstream Bonded Channels
ChannelLock StatusModulationChannel IDFrequencyPowerSNRCorrectablesUncorrectables
1LockedQAM25617537000000 Hz3.4 dBmV39.3 dB00
2LockedQAM2561423000000 Hz3.4 dBmV39.4 dB00
3LockedQAM2562435000000 Hz3.3 dBmV38.9 dB00
4LockedQAM2563447000000 Hz3.8 dBmV39.3 dB00
5LockedQAM2564453000000 Hz3.9 dBmV39.5 dB00
6LockedQAM2565459000000 Hz3.8 dBmV39.5 dB00
7LockedQAM2566465000000 Hz3.9 dBmV39.7 dB00
8LockedQAM2567471000000 Hz3.8 dBmV39.8 dB00
9LockedQAM2568477000000 Hz3.9 dBmV39.9 dB00
10LockedQAM2569483000000 Hz3.6 dBmV39.8 dB00
11LockedQAM25610489000000 Hz3.8 dBmV39.8 dB00
12LockedQAM25611495000000 Hz3.9 dBmV39.6 dB00
13LockedQAM25612507000000 Hz3.8 dBmV38.8 dB00
14LockedQAM25613513000000 Hz3.6 dBmV39.2 dB00
15LockedQAM25614519000000 Hz3.5 dBmV39.1 dB00
16LockedQAM25615525000000 Hz3.2 dBmV38.8 dB00
17LockedQAM25616531000000 Hz2.5 dBmV38.8 dB00
18LockedQAM25618543000000 Hz2.4 dBmV39 dB00
19LockedQAM25619549000000 Hz2.4 dBmV39 dB00
20LockedQAM25620555000000 Hz2.3 dBmV39 dB00
21LockedQAM25621561000000 Hz2.1 dBmV39 dB00
22LockedQAM25622567000000 Hz2.3 dBmV39.4 dB00
23LockedQAM25623573000000 Hz2.3 dBmV39.1 dB00
24LockedQAM25624579000000 Hz2.1 dBmV39.1 dB00
 
Upstream Bonded Channels
ChannelLock StatusUS Channel TypeChannel IDSymbol RateFrequencyPower
1LockedATDMA45120 Ksym/sec35700000 Hz43.5 dBmV
2LockedATDMA15120 Ksym/sec16200000 Hz43.5 dBmV
3LockedATDMA25120 Ksym/sec22700000 Hz43.5 dBmV
4LockedATDMA35120 Ksym/sec29200000 Hz43.5 dBmV
5LockedATDMA51280 Ksym/sec41200000 Hz43.5 dBmV
6Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
7Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
8Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
jk320's avatar
jk320
Aspirant
Dec 02, 2020
 
 
 
TimePriorityDescription
2020-12-2, 03:09:13Warning (5)Dynamic Range Window violation
2020-12-2, 03:09:12Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:cc:fc:61:de:b1;CM-QOS=1.1;CM-VER=3.0;
2020-12-1, 23:08:43Warning (5)Dynamic Range Window violation
1970-1-1, 00:00:50Notice (6)Honoring MDD; IP provisioning mode = IPv6
1970-1-1, 00:00:40Notice (6)WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT
1970-1-1, 00:00:40Notice (6)WiFi Interface [wl0] set to Channel 11 (Side-Band Channel:N/A) - Reason:INIT
1970-1-1, 00:00:39Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2020-11-29, 10:31:15Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:cc:fc:61:de:b1;CM-QOS=1.1;CM-VER=3.0;
1970-1-1, 00:21:47Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:21:43Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:21:43Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:21:35Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:21:34Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:21:28Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:21:13Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:21:12Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:21:04Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:21:02Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:18:56Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:18:53Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:18:35Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:18:33Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:16:27Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:16:27Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:16:26Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:16:24Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:16:04Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:16:02Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:13:55Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:13:55Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:13:55Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:13:53Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:13:33Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:13:31Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:11:26Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:11:24Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:11:04Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:11:02Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:08:55Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:08:55Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=44:a5:6e:01:03:b8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
  • plemans's avatar
    plemans
    Guru - Experienced User
    Dec 02, 2020

    Your power levels from the cable connections page looks spot on. But your getting power violations on the logs ant t3/t4 errors with sync errors. They tend to indicate line issues. Might be worth having the isp checking the line. 

    I'd also check to see if you have any splitters, amplifiers, or attenautors in line and remove them. 

    How frequently is it happening?

    A reboot is the only thing that fixes it? 

    Do hardwired devices have issues when its happening?