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Dropping connection about once a day on my new Motorola MG7700

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Dropping connection about once a day on my new Motorola MG7700

About once a day I have been having an issue with a dropped internet connection. It usually resolves itself within about 10-20 minutes but it is rather annoying. I checked the connections in my home to the router and also outside at the box and they are all tight without any moisture. I'll dump the connection stats and event log below. Any help would be greatly appreciated.

Time Priority Description
Sat Dec 07 11:08:54 2019 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:cc:fc:61:95:ce;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:09:00 2019 Notice (6) Honoring MDD; IP provisioning mode = IPv6
Sat Dec 07 11:09:25 2019 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:cc:fc:61:95:ce;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:09:29 2019 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:cc:fc:61:95:ce;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:09:45 2019 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:cc:fc:61:95:ce;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:09:47 2019 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:cc:fc:61:95:ce;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:09:57 2019 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:cc:fc:61:95:ce;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:10:10 2019 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:cc:fc:61:95:ce;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:10:11 2019 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:cc:fc:61:95:ce;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:10:23 2019 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:cc:fc:61:95:ce;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:10:47 2019 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:cc:fc:61:95:ce;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:10:51 2019 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:cc:fc:61:95:ce;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:11:10 2019 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:cc:fc:61:95:ce;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:11:13 2019 Notice (6) Honoring MDD; IP provisioning mode = IPv6
Sat Dec 07 11:11:32 2019 Warning (5) ToD request sent - No Response received;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:cc:fc:61:95:ce;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:11:38 2019 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:cc:fc:61:95:ce;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:11:56 2019 Warning (5) ToD request sent - No Response received;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:cc:fc:61:95:ce;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:12:00 2019 Critical (3) TFTP Failed - OUT OF ORDER packets;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:cc:fc:61:95:ce;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:12:00 2019 Critical (3) TFTP Request Retries exceeded, CM unable to register
Sat Dec 07 11:12:02 2019 Warning (5) ToD request sent - No Response received;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:cc:fc:61:95:ce;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:12:12 2019 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:cc:fc:61:95:ce;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:12:19 2019 Warning (5) Lost MDD Timeout;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:12:29 2019 Critical (3) No UCDs Received - Timeout;;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:12:45 2019 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:cc:fc:61:95:ce;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:12:51 2019 Notice (6) Honoring MDD; IP provisioning mode = IPv6
Sat Dec 07 11:12:56 2019 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:cc:fc:61:95:ce;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:13:06 2019 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:cc:fc:61:95:ce;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:13:13 2019 Warning (5) Lost MDD Timeout;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:13:23 2019 Critical (3) No UCDs Received - Timeout;;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:13:32 2019 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:40:36:5e:7b:4e;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Sat Dec 07 11:13:43 2019 Notice (6) Honoring MDD; IP provisioning mode = IPv6
Sat Dec 07 11:14:14 2019 Warning (5) Unicast DSID PSN startup error


Startup Step Status Comment


Acquire Downstream Channel 471000000 Hz Locked

Upstream Connection OK Operational

Boot State OK Operational


Configuration File OK

Security Enabled BPI+



Connection Status
System Up Time 0 days 00h:50m:28s

Network Access Allowed



Downstream Bonded Channels

Channel Lock Status Modulation Channel ID Freq. (MHz) Pwr (dBmV) SNR (d Corrected Uncorrected
1 Locked QAM256 9 471.0 2.5 39.8 180 173
2 Locked QAM256 1 423.0 2.7 40.2 93 0
3 Locked QAM256 2 429.0 2.4 40.1 125 0
4 Locked QAM256 3 435.0 2.2 40.1 63 0
5 Locked QAM256 4 441.0 1.8 40.0 86 0
6 Locked QAM256 5 447.0 1.5 39.9 58 0
7 Locked QAM256 6 453.0 1.4 39.8 50 0
8 Locked QAM256 7 459.0 1.6 39.8 79 0
9 Locked QAM256 8 465.0 2.0 39.7 46 0
10 Locked QAM256 17 525.0 3.6 39.8 31 0
11 Locked QAM256 10 477.0 2.9 39.8 18 0
12 Locked QAM256 11 483.0 3.2 39.9 57 0
13 Locked QAM256 12 489.0 3.6 39.9 39 0
14 Locked QAM256 13 495.0 3.8 39.9 67 0
15 Locked QAM256 14 507.0 3.8 36.7 16 0
16 Locked QAM256 15 513.0 3.8 39.9 4 0
17 Locked QAM256 16 519.0 3.5 41.1 94 37
18 Locked QAM256 18 531.0 3.6 41.0 107 56
19 Locked QAM256 19 537.0 3.5 40.8 97 38
20 Locked QAM256 20 543.0 3.5 40.9 94 42
21 Locked QAM256 21 549.0 3.7 40.7 114 28
22 Locked QAM256 22 555.0 3.9 40.8 71 35
23 Locked QAM256 23 561.0 3.7 40.6 81 44
24 Locked QAM256 24 567.0 3.8 40.5 57 27
Total 1727 480


Upstream Bonded Channels

Channel Lock Status Channel Type Channel ID Symb. Rate (Ksym/sec) Freq. (MHz) Pwr (dBmV)
1 Locked ATDMA 2 5120 31.4 51.0
2 Locked ATDMA 1 5120 37.8 51.0
3 Locked ATDMA 3 5120 25.0 51.0
4 Locked ATDMA 4 5120 18.6 51.0
5 Not Locked Unknown 0 0 0 0.0
6 Not Locked Unknown 0 0 0 0.0
7 Not Locked Unknown 0 0 0 0.0
8 Not Locked Unknown 0 0 0 0.0
Expert

Re: Dropping connection about once a day on my new Motorola MG7700

The upstream power is on the high side and it may be intermittently fluctuating even higher to out of spec levels. That can cause random disconnects, spontaneous re-booting of the modem, speed, packet loss, and latency problems.

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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