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Continuous Loss of Connection - Please Help!

CT2014
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Continuous Loss of Connection - Please Help!

I have been having this issue for about a month and a half where our internet connection will randomly stop working throughout the day for about 30-45 seconds then start working again. During this time it doesn't say that I am disconnected from the network or that there is no wifi signal or anything. It just stops loading anything (no web pages will load, dropped from video call I am in, dropped from server on Xbox muliplayer game, etc.) This happens on all devices in the home, both those on wifi and those connected through ethernet cable. 

 

From looking at the error logs on my modem, it looks like the connection issues are in conjuncion with the SYNC Timing Synchronization Failure - Loss of Sync issue.

 

I have already had a Xfinity tech come out to the home and they said everything looked fine from their end. Here are the stats I am getting from my modem:

 

<tabindex=-1>Startup Procedure</tabindex=-1>
Procedure Status Comment
Acquire Downstream Channel 477000000 Hz Locked
Connectivity State Ok Operational
Boot State Ok Operational
Security Enabled BPI+
IP Provisioning Mode Honor MDD honorMdd(4)

Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables UnCorrectables
1 Locked QAM 256 16 477000000 Hz 9.3 dBmV 38.9 dB 315309 1796504
2 Locked QAM 256 17 483000000 Hz 9.4 dBmV 38.9 dB 310791 1815965
3 Locked QAM 256 18 489000000 Hz 9.5 dBmV 38.6 dB 328215 1888116
4 Locked QAM 256 19 495000000 Hz 9.4 dBmV 38.6 dB 327020 1902358
5 Locked QAM 256 20 501000000 Hz 9.5 dBmV 38.9 dB 347557 2011074
6 Locked QAM 256 21 507000000 Hz 9.6 dBmV 38.6 dB 345151 2031340
7 Locked QAM 256 22 513000000 Hz 10.0 dBmV 38.6 dB 380191 2206221
8 Locked QAM 256 23 519000000 Hz 10.0 dBmV 38.6 dB 385858 2246954
9 Locked QAM 256 24 525000000 Hz 10.4 dBmV 38.9 dB 385049 2248801
10 Locked QAM 256 25 531000000 Hz 10.1 dBmV 38.9 dB 408245 2358872
11 Locked QAM 256 26 543000000 Hz 10.0 dBmV 38.9 dB 431880 2540625
12 Locked QAM 256 27 555000000 Hz 10.1 dBmV 38.6 dB 460449 2677169
13 Locked QAM 256 28 561000000 Hz 10.1 dBmV 38.9 dB 496756 2861725
14 Locked QAM 256 29 567000000 Hz 10.1 dBmV 38.6 dB 501832 2906475
15 Locked QAM 256 30 573000000 Hz 10.4 dBmV 38.9 dB 497565 2925173
16 Locked QAM 256 31 579000000 Hz 10.1 dBmV 38.6 dB 529694 3128590
17 Locked QAM 256 32 585000000 Hz 10.4 dBmV 38.6 dB 526196 3115513
18 Locked QAM 256 33 591000000 Hz 10.4 dBmV 38.6 dB 547479 3231507
19 Locked QAM 256 34 597000000 Hz 10.8 dBmV 38.9 dB 569653 3330704
20 Locked QAM 256 35 603000000 Hz 10.5 dBmV 38.9 dB 581494 3381329
21 Locked QAM 256 36 609000000 Hz 10.5 dBmV 38.6 dB 594511 3507312
22 Locked QAM 256 37 615000000 Hz 11.0 dBmV 38.9 dB 601228 3520955
23 Locked QAM 256 38 621000000 Hz 11.0 dBmV 38.6 dB 626024 3629388
24 Locked QAM 256 39 627000000 Hz 11.3 dBmV 38.6 dB 621006 3644870
25 Locked QAM 256 40 633000000 Hz 11.4 dBmV 38.6 dB 13510 58871
26 Locked QAM 256 41 639000000 Hz 11.5 dBmV 38.6 dB 14378 72369
27 Locked QAM 256 42 645000000 Hz 11.5 dBmV 38.6 dB 12306 55407
28 Locked QAM 256 43 651000000 Hz 11.5 dBmV 38.6 dB 13971 69174
29 Locked QAM 256 44 657000000 Hz 11.5 dBmV 38.6 dB 12588 61228
30 Locked QAM 256 45 663000000 Hz 11.6 dBmV 38.6 dB 13008 62987
31 Locked QAM 256 46 669000000 Hz 11.9 dBmV 38.6 dB 14353 68499
32 Locked QAM 256 47 675000000 Hz 11.9 dBmV 38.2 dB 15134 73856

Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1 Locked ATDMA 1 5120 Ksym/sec 17300000 Hz 43.0 dBmV
2 Locked ATDMA 2 5120 Ksym/sec 23700000 Hz 43.0 dBmV
3 Locked ATDMA 3 5120 Ksym/sec 30100000 Hz 42.8 dBmV
4 Locked ATDMA 4 5120 Ksym/sec 36500000 Hz 42.3 dBmV
5 Not Locked N/A Unknown 0 Ksym/sec 0 Hz 0.0 dBmV
6 Not Locked N/A Unknown 0 Ksym/sec 0 Hz 0.0 dBmV
7 Not Locked N/A Unknown 0 Ksym/sec 0 Hz 0.0 dBmV
8 Not Locked N/A Unknown 0 Ksym/sec 0 Hz 0.0 dBmV

 

 

May 30 2020 17:05:31 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 17:05:31 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 17:05:31 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 17:05:31 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 17:05:31 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 17:05:31 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 17:05:31 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 17:05:31 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 17:05:31 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 17:05:31 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 17:05:31 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 17:05:31 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 17:05:31 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 17:05:31 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 17:05:31 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 17:05:31 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 17:05:31 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 17:10:20 Warning (5) Lost MDD Timeout
Time Not Established Critical (3) No Ranging Response received - T3 time-out
May 30 2020 17:12:55 Warning (5) MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
May 30 2020 18:27:02 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 18:28:54 Warning (5) Lost MDD Timeout
May 30 2020 18:31:56 Error (4) DCC-ACK rejected authentication failure
May 30 2020 18:32:35 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
Time Not Established Critical (3) No Ranging Response received - T3 time-out
May 30 2020 18:42:44 Warning (5) MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
May 30 2020 18:42:47 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out
May 30 2020 18:48:03 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
Time Not Established Critical (3) No Ranging Response received - T3 time-out
May 30 2020 18:54:54 Warning (5) MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Time Not Established Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 18:58:43 Warning (5) MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
May 30 2020 18:58:44 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 18:58:55 Error (4) T6 Timeout and retries exceeded
May 30 2020 18:58:55 Critical (3) REG RSP not received
May 30 2020 18:58:58 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 18:59:28 Critical (3) No Ranging Response received - T3 time-out
May 30 2020 18:59:42 Warning (5) MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
May 30 2020 19:06:53 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 19:10:26 Warning (5) MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
May 30 2020 19:28:17 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 19:55:02 Error (4) Service Change Response rejected - Invalid transaction ID
May 30 2020 20:07:18 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 20:37:30 Error (4) Service Change Response rejected - Invalid transaction ID
May 30 2020 20:55:56 Error (4) Service Delete Response rejected - Invalid Transaction
May 30 2020 21:08:27 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 22:02:39 Warning (5) Lost MDD Timeout
May 30 2020 22:27:01 Critical (3) No Ranging Response received - T3 time-out
May 30 2020 22:36:25 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 22:46:45 Warning (5) Lost MDD Timeout
May 30 2020 22:58:41 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 30 2020 23:16:36 Error (4) Service Add rejected - Required parameter not present
May 31 2020 00:35:12 Critical (3) SYNC Timing Synchronization failure - Loss of Sync
May 31 2020 04:42:33 Error (4) Service Change Response rejected - Invalid transaction ID
May 31 2020 04:45:47 Critical (3) No Ranging Response received - T3 time-out
May 31 2020 07:30:30 Error (4) Service Add Ack rejected - Invalid transaction ID