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My Internet Goes out 3 times a day

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My Internet Goes out 3 times a day

 

Can Anyone Help? My internet is going out atleast 3times per day. Working with a Netgear Nighthawk C7000. Any help would be greatly appreciated. THere is also a signal booster attached from the wall to the booster into my router. It is AC/DC powered and supplied bya  comcast technician. 

 

 
 
Time Priority Description
1970-1-1, 00:00:49 Notice (6) Honoring MDD; IP provisioning mode = IPv6
1970-1-1, 00:00:40 Notice (6) WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT
1970-1-1, 00:00:40 Notice (6) WiFi Interface [wl0] set to Channel 11 (Side-Band Channel:N/A) - Reason:INIT
1970-1-1, 00:00:38 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 14:14:23 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.1;CM-VER=3.0;
2020-6-24, 14:14:10 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.1;CM-VER=3.0;
2020-6-24, 14:14:04 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.1;CM-VER=3.0;
2020-6-24, 14:13:31 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.1;CM-VER=3.0;
2020-6-24, 14:13:15 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.1;CM-VER=3.0;
2020-6-24, 13:39:10 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.1;CM-VER=3.0;
1970-1-1, 00:00:39 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:24:00 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:23:59 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:23:11 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:23:02 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:22:02 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:22:01 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:21:13 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:20:56 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:20:50 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:20:47 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:20:46 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:19:49 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:19:48 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:19:17 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:19:16 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:19:15 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:19:14 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:19:13 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:19:12 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:19:11 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:19:09 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:18:47 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:18:46 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:17:49 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:17:48 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:17:21 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:17:20 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:16:23 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
2020-6-24, 13:16:22 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=bc:a5:11:90:c2:9c;CMTS-MAC=2c:ab:eb:26:5d:5e;CM-QOS=1.0;CM-VER=3.0;
 
 

 

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Re: My Internet Goes out 3 times a day

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




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Re: My Internet Goes out 3 times a day

Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables
1 Locked QAM256 33 621000000 Hz -6.2 dBmV 38.5 dB 219 310
2 Locked QAM256 17 525000000 Hz -9 dBmV 36.6 dB 262 525
3 Locked QAM256 18 531000000 Hz -8.4 dBmV 36.9 dB 293 163
4 Locked QAM256 19 537000000 Hz -8.4 dBmV 36.9 dB 307 346
5 Locked QAM256 20 543000000 Hz -8 dBmV 37.2 dB 196 555
6 Locked QAM256 21 549000000 Hz -8.3 dBmV 37.3 dB 194 156
7 Locked QAM256 22 555000000 Hz -8.3 dBmV 37.3 dB 262 208
8 Locked QAM256 23 561000000 Hz -8.5 dBmV 36.8 dB 250 504
9 Locked QAM256 24 567000000 Hz -8.1 dBmV 36 dB 180 405
10 Locked QAM256 25 573000000 Hz -8.2 dBmV 37 dB 231 183
11 Locked QAM256 26 579000000 Hz -8.4 dBmV 37.2 dB 201 440
12 Locked QAM256 27 585000000 Hz -7.6 dBmV 37.4 dB 214 329
13 Locked QAM256 28 591000000 Hz -7.5 dBmV 37.2 dB 98 155
14 Locked QAM256 29 597000000 Hz -7.4 dBmV 36.7 dB 211 109
15 Locked QAM256 30 603000000 Hz -6.5 dBmV 37.5 dB 123 257
16 Locked QAM256 31 609000000 Hz -5.9 dBmV 38.6 dB 131 122
17 Locked QAM256 32 615000000 Hz -6.3 dBmV 39 dB 0 0
18 Locked QAM256 34 627000000 Hz -7.6 dBmV 38.2 dB 0 0
19 Locked QAM256 35 639000000 Hz -8.3 dBmV 37.7 dB 0 0
20 Locked QAM256 36 645000000 Hz -8.2 dBmV 37.8 dB 0 0
21 Locked QAM256 37 651000000 Hz -8.7 dBmV 37.2 dB 0 0
22 Locked QAM256 38 657000000 Hz -9.3 dBmV 36.9 dB 0 0
23 Locked QAM256 39 663000000 Hz -9.8 dBmV 36.2 dB 0 0
24 Locked QAM256 40 669000000 Hz -9.8 dBmV 36.1 dB 0 0
 
Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1 Locked ATDMA 4 5120 Ksym/sec 16600000 Hz 50 dBmV
2 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
3 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
4 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
5 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
6 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
7 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
8 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
Highlighted
Expert

Re: My Internet Goes out 3 times a day

The downstream power is too weak / low and the upstream power is on the high side and they may be intermittently fluctuating even father to out of spec levels. That can cause random disconnects, spontaneous re-booting of the modem, speed, packet loss, latency problems, and the un-bonding of channels. You are only locking on to 1 upstream channel. There should be 3 to 5 channels.

In a self troubleshooting effort to try to obtain better connectivity / more wiggle room, check to see if there are there any excess/unneeded coax cable splitters in the line leading to the modem that can be eliminated/re-configured. Any splitters that remain should be high quality and cable rated for 5-1002 MHz, bi-directional, and no gold colored garbage types like GE, RadioShack, RCA, Philips, Leviton, Magnavox, and Rocketfish from big box stores like Home Depot, Lowes, Target, Wal-Mart etc. Splitters should be swapped with known to be good / new ones to test

If there aren't any unneeded splitters that can be eliminated and if your coax wiring setup can't be reconfigured so that there is a single two way splitter connected directly off of the drop from the street/pole with one port feeding the modem and the other port feeding the rest of the house/equipment with additional splits as needed, and you've checked all the wiring and fittings for integrity and tightness and refresh them by taking them apart then check for and clean off any corrosion / oxidation on the center wire and put them back together again, then perhaps it's best to book a tech visit to investigate and correct.



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Re: My Internet Goes out 3 times a day

Thank You! Do you happen to know what the solution would be if I did venture down the route of having to schedule a technician to come out? Installation of new cables?

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Re: My Internet Goes out 3 times a day

I understand that it's a bit tough to get a tech out right now due to the pandemic. Good luck with it !



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