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user_995d43
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Monday, August 21st, 2023 4:58 PM

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ARRIS S33 Frequent Disconnects Daily

I purchased an ARRIS S33 Modem and W33 routers for my home. The issue is that the modem frequently disconnects throughout the day, typically dozens of times. I tried using the Xfinity Assistant however with the frequent disconnect/ connect issues, it determines that there are no known issues which is not the case as  the modem frequently cycles and a lose connectivity which typically resolves within a few minutes (before the self diag completes).

I shared the modem logs below for reference:

Date Time

Event Level

Description

31/12/1969
19:00:21

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.3, 1002MHz.

31/12/1969
19:00:21

3

CMSTATUS:US_Diplexer_Mode_Change:TLV-21.1, 5-42MHz.

31/12/1969
19:00:38

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.2, 108MHz.

31/12/1969
19:00:38

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz.

31/12/1969
19:00:38

3

CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz.

31/12/1969
19:00:15

3

CMSTATUS:US_Diplexer_Mode_Change:Init, 5-42MHz.

31/12/1969
19:00:19

3

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

31/12/1969
19:00:22

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.2, 258MHz.

31/12/1969
19:00:22

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.3, 1002MHz.

31/12/1969
19:00:22

3

CMSTATUS:US_Diplexer_Mode_Change:TLV-21.1, 5-42MHz.

31/12/1969
19:00:40

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.2, 108MHz.

31/12/1969
19:00:40

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz.

31/12/1969
19:00:40

3

CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz.

31/12/1969
19:00:16

3

CMSTATUS:US_Diplexer_Mode_Change:Init, 5-42MHz.

31/12/1969
19:00:20

3

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

31/12/1969
19:00:22

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.2, 258MHz.

31/12/1969
19:00:22

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.3, 1002MHz.

31/12/1969
19:00:22

3

CMSTATUS:US_Diplexer_Mode_Change:TLV-21.1, 5-42MHz.

31/12/1969
19:00:39

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.2, 108MHz.

31/12/1969
19:00:39

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz.

31/12/1969
19:00:39

3

CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz.

31/12/1969
19:00:15

3

CMSTATUS:US_Diplexer_Mode_Change:Init, 5-42MHz.

31/12/1969
19:00:19

3

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

31/12/1969
19:00:20

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.2, 258MHz.

31/12/1969
19:00:20

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.3, 1002MHz.

31/12/1969
19:00:21

3

CMSTATUS:US_Diplexer_Mode_Change:TLV-21.1, 5-42MHz.

31/12/1969
19:00:38

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.2, 108MHz.

31/12/1969
19:00:38

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz.

31/12/1969
19:00:38

3

CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz.

31/12/1969
19:00:15

3

CMSTATUS:US_Diplexer_Mode_Change:Init, 5-42MHz.

31/12/1969
19:00:20

3

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

31/12/1969
19:00:21

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.2, 258MHz.

31/12/1969
19:00:21

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.3, 1002MHz.

31/12/1969
19:00:21

3

CMSTATUS:US_Diplexer_Mode_Change:TLV-21.1, 5-42MHz.

31/12/1969
19:00:39

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.2, 108MHz.

31/12/1969
19:00:39

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz.

31/12/1969
19:00:39

3

CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz.

31/12/1969
19:00:15

3

CMSTATUS:US_Diplexer_Mode_Change:Init, 5-42MHz.

31/12/1969
19:00:20

3

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

31/12/1969
19:00:22

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.2, 258MHz.

31/12/1969
19:00:22

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.3, 1002MHz.

31/12/1969
19:00:22

3

CMSTATUS:US_Diplexer_Mode_Change:TLV-21.1, 5-42MHz.

31/12/1969
19:00:39

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.2, 108MHz.

31/12/1969
19:00:39

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz.

31/12/1969
19:00:39

3

CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz.

31/12/1969
19:00:15

3

CMSTATUS:US_Diplexer_Mode_Change:Init, 5-42MHz.

31/12/1969
19:00:19

3

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

31/12/1969
19:00:20

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.2, 258MHz.

31/12/1969
19:00:20

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.3, 1002MHz.

31/12/1969
19:00:20

3

CMSTATUS:US_Diplexer_Mode_Change:TLV-21.1, 5-42MHz.

21/8/2023
09:03:45

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.2, 108MHz.

21/8/2023
09:03:45

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz.

21/8/2023
09:03:45

3

CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz.

31/12/1969
19:00:15

3

CMSTATUS:US_Diplexer_Mode_Change:Init, 5-42MHz.

31/12/1969
19:00:19

3

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

31/12/1969
19:00:21

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.2, 258MHz.

31/12/1969
19:00:21

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.3, 1002MHz.

31/12/1969
19:00:21

3

CMSTATUS:US_Diplexer_Mode_Change:TLV-21.1, 5-42MHz.

31/12/1969
19:00:38

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.2, 108MHz.

31/12/1969
19:00:38

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz.

31/12/1969
19:00:38

3

CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz.

31/12/1969
19:00:15

3

CMSTATUS:US_Diplexer_Mode_Change:Init, 5-42MHz.

31/12/1969
19:00:20

3

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

31/12/1969
19:00:21

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.2, 258MHz.

31/12/1969
19:00:21

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.3, 1002MHz.

31/12/1969
19:00:21

3

CMSTATUS:US_Diplexer_Mode_Change:TLV-21.1, 5-42MHz.

31/12/1969
19:00:37

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.2, 108MHz.

31/12/1969
19:00:37

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz.

31/12/1969
19:00:37

3

CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz.

31/12/1969
19:00:15

3

CMSTATUS:US_Diplexer_Mode_Change:Init, 5-42MHz.

31/12/1969
19:00:19

3

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

31/12/1969
19:00:22

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.2, 258MHz.

31/12/1969
19:00:22

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.3, 1002MHz.

31/12/1969
19:00:22

3

CMSTATUS:US_Diplexer_Mode_Change:TLV-21.1, 5-42MHz.

21/8/2023
10:29:51

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.2, 108MHz.

21/8/2023
10:29:51

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz.

21/8/2023
10:29:51

3

CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz.

31/12/1969
19:00:15

3

CMSTATUS:US_Diplexer_Mode_Change:Init, 5-42MHz.

31/12/1969
19:00:19

3

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

31/12/1969
19:00:20

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.2, 258MHz.

31/12/1969
19:00:20

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.3, 1002MHz.

31/12/1969
19:00:20

3

CMSTATUS:US_Diplexer_Mode_Change:TLV-21.1, 5-42MHz.

31/12/1969
19:00:37

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.2, 108MHz.

31/12/1969
19:00:37

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz.

31/12/1969
19:00:37

3

CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz.

21/8/2023
11:14:13

3

Successful LAN WebGUI login from 73.214.137.69 on 23/08/21 at 11:14 AM.

31/12/1969
19:00:15

3

CMSTATUS:US_Diplexer_Mode_Change:Init, 5-42MHz.

31/12/1969
19:00:20

3

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

31/12/1969
19:00:22

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.2, 258MHz.

31/12/1969
19:00:22

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.3, 1002MHz.

31/12/1969
19:00:22

3

CMSTATUS:US_Diplexer_Mode_Change:TLV-21.1, 5-42MHz.

31/12/1969
19:00:30

6

Honoring MDD; IP provisioning mode = IPv6

31/12/1969
19:00:40

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.2, 108MHz.

31/12/1969
19:00:40

3

CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz.

31/12/1969
19:00:40

3

CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz.

21/8/2023
11:17:30

6

DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;

21/8/2023
11:17:36

5

REG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;

21/8/2023
11:22:47

3

Failed LAN WebGUI login attempt from 73.214.137.69 on 23/08/21 at 11:22 AM.

21/8/2023
11:22:55

3

Successful LAN WebGUI login from 73.214.137.69 on 23/08/21 at 11:22 AM.

21/8/2023
11:23:23

3

Successful LAN WebGUI login from 73.214.137.69 on 23/08/21 at 11:23 AM.

 

 

Question

 • 

Updated 

1 year ago

 • Edited

318

2

0

user_995d43

2 Messages

2 years ago

Also included signals, though I suspect these will vary based on the time it is pulled?

Downstream Bonded Channels
Channel ID Lock Status Modulation Frequency Power SNR/MER Corrected Uncorrectables
9 Locked QAM256 453000000 Hz 0 dBmV 40 dB 0 0
1 Locked QAM256 405000000 Hz 2 dBmV 41 dB 0 0
2 Locked QAM256 411000000 Hz 2 dBmV 41 dB 0 0
3 Locked QAM256 417000000 Hz 2 dBmV 41 dB 0 0
4 Locked QAM256 423000000 Hz 2 dBmV 41 dB 0 0
5 Locked QAM256 429000000 Hz 1 dBmV 41 dB 0 0
6 Locked QAM256 435000000 Hz 1 dBmV 41 dB 0 0
7 Locked QAM256 441000000 Hz 1 dBmV 41 dB 0 0
8 Locked QAM256 447000000 Hz 1 dBmV 41 dB 0 0
10 Locked QAM256 459000000 Hz 0 dBmV 40 dB 0 0
11 Locked QAM256 465000000 Hz 0 dBmV 40 dB 0 0
12 Locked QAM256 471000000 Hz 0 dBmV 40 dB 0 0
13 Locked QAM256 477000000 Hz 0 dBmV 40 dB 0 0
14 Locked QAM256 483000000 Hz 0 dBmV 40 dB 0 0
15 Locked QAM256 489000000 Hz 0 dBmV 40 dB 0 0
16 Locked QAM256 495000000 Hz 0 dBmV 40 dB 0 0
17 Locked QAM256 507000000 Hz 0 dBmV 40 dB 0 0
18 Locked QAM256 513000000 Hz 0 dBmV 40 dB 0 0
19 Locked QAM256 519000000 Hz 0 dBmV 40 dB 0 0
20 Locked QAM256 525000000 Hz 0 dBmV 40 dB 0 0
21 Locked QAM256 531000000 Hz -1 dBmV 40 dB 0 0
22 Locked QAM256 537000000 Hz -1 dBmV 40 dB 0 0
23 Locked QAM256 543000000 Hz -1 dBmV 39 dB 0 0
24 Locked QAM256 549000000 Hz -1 dBmV 40 dB 0 0
25 Locked QAM256 555000000 Hz -1 dBmV 39 dB 0 0
26 Locked QAM256 561000000 Hz -1 dBmV 39 dB 0 0
27 Locked QAM256 567000000 Hz -1 dBmV 39 dB 0 0
28 Locked QAM256 573000000 Hz -1 dBmV 39 dB 0 0
29 Locked QAM256 579000000 Hz -1 dBmV 39 dB 0 0
30 Locked QAM256 585000000 Hz -1 dBmV 39 dB 0 0
31 Locked QAM256 591000000 Hz -1 dBmV 39 dB 0 0
32 Locked QAM256 597000000 Hz -1 dBmV 39 dB 0 0
159 Locked OFDM PLC 678000000 Hz -3 dBmV 38 dB 7031826 0


Upstream Bonded Channels
Channel ID Lock Status US Channel Type Frequency Width Power
2 Locked SC-QAM 16400000 Hz 6400000 36.8 dBmV
3 Locked SC-QAM 22800000 Hz 6400000 37.3 dBmV
4 Locked SC-QAM 29200000 Hz 6400000 37.8 dBmV
5 Locked SC-QAM 35600000 Hz 6400000 38.3 dBmV
6 Locked SC-QAM 40400000 Hz 3200000 39.3 dBmV

2

0

EG

Expert

 • 

110K Messages

1 year ago

@user_wb43uz 


Please create a new topic of your own here on this board detailing your issue. Thanks. The original poster has not returned. 4-month-old dead thread is now being closed.


For future reference, it is better to submit your own post as it creates a ticket to get help, and posting on someone else's older thread can delay getting help.

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