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user_8t4x6o
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2 Messages

Monday, May 12th, 2025 5:39 PM

Xfinity ISP error codes on modem

My modem intermittently drops the internet connection and logs error codes. I have contacted Xfinity 3 times already. They have failed to correct this issue. I have replaced my Modem and Router already. All wires are correctly plugged in. Device has been rebooted. Has been interrogated by Xfinity. 

I already spoke to a "supervisor" at Xfinity who said there was an issue on Xfinity's end, but didn't fix the issue. Xfinity needs to fix this or I am going to have to change providers. The most recent error logs are listed below.

05/12/2025 09:16:08

Notice

CM-STATUS message sent. Event Type Code: 5; Chan ID: 20; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/12/2025 05:11:44

Critical

No Ranging Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 21:59:24

Notice

CM-STATUS message sent. Event Type Code: 5; Chan ID: 20; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 21:59:03

Critical

No Ranging Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 21:50:00

Notice

CM-STATUS message sent. Event Type Code: 23; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 21:47:51

Critical

SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 20:56:25

Notice

CM-STATUS message sent. Event Type Code: 24; Chan ID: 194; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 20:54:41

Notice

CM-STATUS message sent. Event Type Code: 23; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 20:50:22

Notice

CM-STATUS message sent. Event Type Code: 17; Chan ID: 36; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 20:50:11

Critical

SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 20:09:54

Notice

CM-STATUS message sent. Event Type Code: 5; Chan ID: 36; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 20:09:48

Critical

SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 20:09:29

Notice

CM-STATUS message sent. Event Type Code: 5; Chan ID: 28; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 19:47:36

Notice

CM-STATUS message sent. Event Type Code: 5; Chan ID: 28; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 19:47:19

Critical

SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 19:46:52

Notice

CM-STATUS message sent. Event Type Code: 5; Chan ID: 22; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 19:46:06

Warning

Lost MDD Timeout;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 19:46:05

Critical

SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 19:37:25

Notice

CM-STATUS message sent. Event Type Code: 5; Chan ID: 44; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 19:31:55

Notice

CM-STATUS message sent. Event Type Code: 5; Chan ID: 44; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 19:31:49

Critical

SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 19:20:57

Notice

CM-STATUS message sent. Event Type Code: 5; Chan ID: 44; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 19:20:51

Critical

SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 19:06:38

Notice

CM-STATUS message sent. Event Type Code: 5; Chan ID: 44; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 19:06:23

Critical

SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 18:59:00

Notice

CM-STATUS message sent. Event Type Code: 5; Chan ID: 44; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 18:58:56

Critical

SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 18:57:05

Notice

CM-STATUS message sent. Event Type Code: 5; Chan ID: 44; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 18:55:18

Critical

No Ranging Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 18:51:48

Notice

CM-STATUS message sent. Event Type Code: 5; Chan ID: 44; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 18:35:23

Critical

No Ranging Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 18:20:52

Notice

CM-STATUS message sent. Event Type Code: 5; Chan ID: 44; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 17:56:32

Critical

No Ranging Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 17:54:05

Notice

CM-STATUS message sent. Event Type Code: 5; Chan ID: 20; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 17:53:56

Critical

SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 17:38:27

Critical

No Ranging Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 09:18:28

Notice

CM-STATUS message sent. Event Type Code: 5; Chan ID: 20; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 09:18:15

Critical

SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 09:07:16

Notice

CM-STATUS message sent. Event Type Code: 24; Chan ID: 194; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 09:03:49

Notice

CM-STATUS message sent. Event Type Code: 23; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 09:03:30

Warning

RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 09:03:21

Notice

CM-STATUS message sent. Event Type Code: 17; Chan ID: 28; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 09:03:17

Warning

RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 09:03:14

Notice

CM-STATUS message sent. Event Type Code: 4; Chan ID: 19; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 09:03:08

Critical

SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 09:03:08

Error

TCS Fail on all Upstream Channels;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 09:03:08

Critical

No Ranging Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 09:02:58

Critical

SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 08:54:27

Notice

CM-STATUS message sent. Event Type Code: 5; Chan ID: 44; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 08:54:04

Critical

SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 08:49:02

Notice

CM-STATUS message sent. Event Type Code: 5; Chan ID: 20; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 08:27:16

Notice

CM-STATUS message sent. Event Type Code: 5; Chan ID: 20; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 08:27:12

Critical

SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 08:27:10

Notice

CM-STATUS message sent. Event Type Code: 2; Chan ID: 28; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 08:27:09

Critical

SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 07:48:42

Notice

CM-STATUS message sent. Event Type Code: 5; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 03:43:58

Critical

No Ranging Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 03:41:31

Notice

CM-STATUS message sent. Event Type Code: 24; Chan ID: 194; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 03:40:07

Notice

CM-STATUS message sent. Event Type Code: 23; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 03:35:46

Notice

CM-STATUS message sent. Event Type Code: 5; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 03:35:21

Critical

SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;


05/11/2025 03:35:15

Notice

CM-STATUS message sent. Event Type Code: 5; Chan ID: 18; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;

 

Question

 • 

Updated 

2 months ago

 • Edited

23

2

0

XfinityArmand

Official Employee

 • 

2.2K Messages

2 months ago

Hello @user_8t4x6o and thank you so much for taking the time to reach out to Xfinity Support!  We are so glad to hear from you and want to help in any way that we can to ensure that you are having the best experience with your service.  No worries!  You have reached out to the best team to assist in addressing your service concerns.  Please feel free to shoot us a private message with your details so that we can get started. 

 

To send a "direct message" / "private message" message to Xfinity Support:

 • Click "Sign In" if necessary

 • Click the "Direct Message" icon or https://forums.xfinity.com/direct-messaging 

 • Click the "New message" (pencil and paper) icon

 • The "To:" line prompts you to "Type the name of a person". Instead, type "Xfinity Support" there

 • As you are typing a drop-down list appears. Select "Xfinity Support" from that list

 • An "Xfinity Support" graphic replaces the "To:" line

 • Type your message in the text area near the bottom of the window

 • Press Enter to send it

(edited)

0

0

EG

Expert

 • 

111.7K Messages

2 months ago

What do the modem's signal status values look like ? 

Please copy all of the text in its entirety of the *Downstream Power Levels*, the *SNR's* (Signal to Noise Ratios), and the *Upstream Power Level* numbers and paste them into your next post.

1

0

user_8t4x6o

Visitor

 • 

2 Messages

Channel ID Lock Status US Channel Type Frequency Width Power
2 Locked SC-QAM 22800000 Hz 6400000 41.5 dBmV
4 Locked SC-QAM 35600000 Hz 6400000 42.8 dBmV
3 Locked SC-QAM 29200000 Hz 6400000 42.3 dBmV
1 Locked SC-QAM 16400000 Hz 6400000 41.0 dBmV

20 Locked 256QAM 495000000 Hz -3.4 dBmV 40.9 dB 42562 231113
28 Locked 256QAM 543000000 Hz -4.3 dBmV 40.9 dB 444 2151
36 Locked 256QAM 591000000 Hz -4.9 dBmV 40.9 dB 431 2204
44 Locked 256QAM 639000000 Hz -4.8 dBmV 40.9 dB 25575 151456
13 Locked 256QAM 453000000 Hz -3.0 dBmV 40.4 dB 52466 269799
14 Locked 256QAM 459000000 Hz -2.9 dBmV 40.9 dB 57379 305984
15 Locked 256QAM 465000000 Hz -3.0 dBmV 43.4 dB 52904 288743
16 Locked 256QAM 471000000 Hz -2.9 dBmV 40.9 dB 47517 260372
17 Locked 256QAM 477000000 Hz -3.2 dBmV 43.4 dB 47745 266323
18 Locked 256QAM 483000000 Hz -3.6 dBmV 40.9 dB 42349 242667
19 Locked 256QAM 489000000 Hz -3.5 dBmV 40.9 dB 39069 221086
21 Locked 256QAM 501000000 Hz -3.5 dBmV 40.9 dB 40771 217468
22 Locked 256QAM 507000000 Hz -3.7 dBmV 43.4 dB 41473 229650
23 Locked 256QAM 513000000 Hz -3.5 dBmV 40.9 dB 41902 220160
24 Locked 256QAM 519000000 Hz -3.4 dBmV 43.4 dB 35357 200395
25 Locked 256QAM 525000000 Hz -3.9 dBmV 40.9 dB 36438 203095
26 Locked 256QAM 531000000 Hz -4.0 dBmV 40.9 dB 36881 213203
27 Locked 256QAM 537000000 Hz -4.2 dBmV 40.4 dB 37844 204714
29 Locked 256QAM 549000000 Hz -4.3 dBmV 40.9 dB 37615 209543
30 Locked 256QAM 555000000 Hz -4.2 dBmV 40.9 dB 34660 200388
31 Locked 256QAM 561000000 Hz -4.5 dBmV 40.9 dB 29754 163550
32 Locked 256QAM 567000000 Hz -4.9 dBmV 40.9 dB 33716 183544
33 Locked 256QAM 573000000 Hz -4.9 dBmV 40.9 dB 31216 180190
34 Locked 256QAM 579000000 Hz -4.7 dBmV 40.9 dB 32755 164806
35 Locked 256QAM 585000000 Hz -4.9 dBmV 40.9 dB 32085 186088
37 Locked 256QAM 597000000 Hz -4.4 dBmV 40.9 dB 36970 224775
38 Locked 256QAM 603000000 Hz -4.0 dBmV 40.9 dB 33664 201164
39 Locked 256QAM 609000000 Hz -4.4 dBmV 40.9 dB 29888 177925
40 Locked 256QAM 615000000 Hz -4.4 dBmV 40.9 dB 27460 160525
41 Locked 256QAM 621000000 Hz -4.8 dBmV 36.6 dB 46893 145522
42 Locked 256QAM 627000000 Hz -5.1 dBmV 37.6 dB 24418 134581
43 Locked 256QAM 633000000 Hz -5.1 dBmV 35.2 dB 157810 147150
193 Locked OFDM PLC 722000000 Hz -5.0 dBmV 43.0 dB 2097598582 11995
194 Locked OFDM PLC 957000000 Hz -6.1 dBmV 42.0 dB 2751641791 28670
Procedure Status Comment
Acquire Downstream Channel 543000000 Hz Locked
Connectivity State OK Operational
Boot State OK Operational
Configuration File OK
Security Enabled BPI+
DOCSIS Network Access Enabled Allowed

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2 months ago

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