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UpsetinWM
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1st Reply

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27 Messages

Friday, July 23rd, 2021 12:44 PM

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What does this mean

Fri Jul 23 04:51:10 2021 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.0;
Fri Jul 23 04:51:17 2021 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.0;

Its a reading on my owned modem . 

Question

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Updated 

4 years ago

 • Edited

735

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EG

Expert

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111.4K Messages

4 years ago

Is that all of them ? If not please them in their entirety but redact the CM and the CMTS MAC addresses for your privacy.

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

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UpsetinWM

Contributor

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27 Messages

4 years ago

Signal still dropping so Yesterday , I took my own modem off and went to local Xfinity store and got a new modem . I got a rep on the phone to help get it online and it took awhile to do this  so this modem has been online since yesterday  midday . There are 20 pages of readings (496) events on this modem.  Here is one page  . What is the deal with all these readings and would this be causing this modem to drop offline? Thanks 

Docsis][1033]: No Ranging Response received - T3 time-out 2021/7/25 05:43:43 Warning
[Docsis][1033]: No Ranging Response received - T3 time-out 2021/7/25 05:43:39 Warning
[Docsis][1033]: Unicast Ranging Received Abort Response - initializing MAC 2021/7/25 05:43:39 Critical
[Docsis][1033]: No Ranging Response received - T3 time-out 2021/7/25 05:42:59 Warning
[Docsis][1033]: Unicast Ranging Received Abort Response - initializing MAC 2021/7/25 05:42:59 Critical
[Docsis][1033]: No Ranging Response received - T3 time-out 2021/7/25 05:42:03 Warning
[Docsis][1033]: No Ranging Response received - T3 time-out 2021/7/25 05:41:59 Warning
[Docsis][1033]: Unicast Ranging Received Abort Response - initializing MAC 2021/7/25 05:41:59 Critical
[Docsis][1033]: No Ranging Response received - T3 time-out 2021/7/25 05:41:19 Warning
[Docsis][1033]: Unicast Ranging Received Abort Response - initializing MAC 2021/7/25 05:41:19 Critical
[Docsis][1033]: No Ranging Response received - T3 time-out 2021/7/25 05:40:23 Warning
[Docsis][1033]: No Ranging Response received - T3 time-out 2021/7/25 05:40:20 Warning
[Docsis][1033]: Unicast Ranging Received Abort Response - initializing MAC 2021/7/25 05:40:19 Critical
[Docsis][1033]: No Ranging Response received - T3 time-out 2021/7/25 05:39:40 Warning
[Docsis][1033]: Unicast Ranging Received Abort Response - initializing MAC 2021/7/25 05:39:40 Critical
[Docsis][1033]: No Ranging Response received - T3 time-out 2021/7/25 05:38:43 Warning
[Docsis][1033]: No Ranging Response received - T3 time-out 2021/7/25 05:38:40 Warning
[Docsis][1033]: Unicast Ranging Received Abort Response - initializing MAC 2021/7/25 05:38:40 Critical
[Docsis][1033]: No Ranging Response received - T3 time-out 2021/7/25 05:38:00 Warning
[Docsis][1033]: Unicast Ranging Received Abort Response - initializing MAC 2021/7/25 05:38:00 Critical

(edited)

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CCHeather

Problem Solver

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1.1K Messages

@UpsetinWM

Thank you so much for reaching out to us through our awesome peer to peer chat. I hate to hear this has been your experience and would love to investigate this for you! Please send us a PM with your first and last name, as well as house numbers to your service address. To send us a Private Chat Message, select the message icon in the top right corner and then search for Xfinity support. With our new Xfinity support chat, you do not need to input the name of a person. Just select Xfinity support and you will be able to speak with the next available specialist.

I no longer work for Comcast.

4 years ago

0

EG

Expert

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111.4K Messages

4 years ago

@UpsetinWM You didn't post the requested signal status numbers.

(edited)

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UpsetinWM

Contributor

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27 Messages

@EG

Downstream
Channel Bonding Value
Index
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Lock Status
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Frequency:
501 MHz
399 MHz
405 MHz
411 MHz
417 MHz
423 MHz
429 MHz
435 MHz
447 MHz
453 MHz
459 MHz
465 MHz
471 MHz
477 MHz
483 MHz
489 MHz
495 MHz
507 MHz
513 MHz
519 MHz
525 MHz
531 MHz
537 MHz
543 MHz
SNR
40.366 dB
40.366 dB
40.366 dB
40.366 dB
40.366 dB
40.946 dB
40.946 dB
40.946 dB
40.946 dB
40.366 dB
40.946 dB
40.366 dB
40.366 dB
40.946 dB
40.366 dB
40.366 dB
40.366 dB
40.946 dB
40.366 dB
35.780 dB
38.983 dB
40.946 dB
40.946 dB
40.366 dB
Power Level
-1.900 dBmV
-1.700 dBmV
-1.900 dBmV
-2.000 dBmV
-1.600 dBmV
-1.300 dBmV
-1.200 dBmV
-1.500 dBmV
-1.700 dBmV
-1.500 dBmV
-1.200 dBmV
-1.600 dBmV
-1.900 dBmV
-2.100 dBmV
-2.300 dBmV
-1.900 dBmV
-1.600 dBmV
-2.000 dBmV
-2.200 dBmV
-2.400 dBmV
-2.200 dBmV
-2.200 dBmV
-2.300 dBmV
-2.700 dBmV
Modulation
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM

4 years ago

0

UpsetinWM

Contributor

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27 Messages

Upstream
Channel Bonding Value
Index
1
2
3
4
5
Lock Status
Locked
Locked
Locked
Locked
Locked
Frequency:
29 MHz
39 MHz
16 MHz
22 MHz
35 MHz
Symbol Rate
5120 KSym/sec
1280 KSym/sec
5120 KSym/sec
5120 KSym/sec
5120 KSym/sec
Power Level
50.500 dBmV
50.500 dBmV
50.500 dBmV
50.500 dBmV
50.500 dBmV
Modulation
64 QAM
64 QAM
64 QAM
64 QAM
64 QAM
Channel Type
ATDMA
ATDMA
ATDMA
ATDMA
ATDMA

4 years ago

0

UpsetinWM

Contributor

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27 Messages

The thing is my downstream was in the 8.1's and upstream mostly in 40's  I had a drop amp on for a while and Saturday my speed went back up so today I took the amp off and the reading I just posted is what is what they are now . Also the modem hasn't dropped in a hour since I took it off  YET . The speed is still fantastic . Cross my fingers this is the cure to my internet nightmare thats last 3 weeks . The events on the modem have also stopped  . The downstream power seems a bit low ? Is the upstream ok?  I've had no drops at this level so far . 

CM Error Codewords
Unerrored Codewords
0
99066771
99069118
99055541
99070458
99065524
99050771
99055980
99057310
65929793
65933737
65930934
65932575
65938338
65938679
65939757
65934650
123189654
123196462
123197625
123198883
99045213
123200795
123202110
Correctable Codewords
0
49
59
8
0
16
23
0
7
14
0
0
0
0
0
0
0
0
0
4
0
0
0
0
Uncorrectable Codewords
0
7
25
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

4 years ago

0

UpsetinWM

Contributor

 • 

27 Messages

There was one t3 warning event on modem today and The downstream is in the  2's  and upstream is

Upstream
Channel Bonding Value
Index
1
2
3
4
5
Lock Status
Locked
Locked
Locked
Locked
Locked
Frequency:
35 MHz
39 MHz
16 MHz
22 MHz
29 MHz
Symbol Rate
5120 KSym/sec
1280 KSym/sec
5120 KSym/sec
5120 KSym/sec
5120 KSym/sec
Power Level
50.500 dBmV
52.000 dBmV
52.000 dBmV
52.000 dBmV
50.500 dBmV
Modulation
64 QAM
64 QAM
64 QAM
64 QAM
64 QAM
Channel Type
ATDMA
ATDMA
ATDMA
ATDMA
ATDMA

Event Logs

All logs for Today
[Dhcpc][1948]: erouter0 got new  2021/7/28 03:45:26 Notice
[Dhcpc][1873]: mta0 got new IP 2021/7/28 03:45:21 Notice
[Docsis][1033]: No Ranging Response received - T3 time-out 2021/7/28 03:45:12 Warning
[Dhcpc][1958]: erouter0 got new IP  2021/7/28 02:38:26 Notice
[Dhcpc][1879]: mta0 got new IP 2021/7/28 02:38:23 Notice
[Dhcpc][11346]: mta0 T1 Expired, Enter Renew State 2021/7/28 01:17:21 Notice
[Dhcpc][11394]: erouter0 got new IP  2021/7/27 20:39:00 Notice
[Dhcpc][11346]: mta0 got new IP 2021/7/27 20:38:53 Notice

(edited)

4 years ago

0

UpsetinWM

Contributor

 • 

27 Messages

4 years ago

All the critical events have stopped  the last was 4 hours ago  .It renewed IP and nothing since

1

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ruebee

New Poster

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22 Messages

@UpsetinWM Any resolution to your issue? I'm having a similar problem. 

4 years ago

0

EG

Expert

 • 

111.4K Messages

4 years ago

The upstream power is too high / out of spec and it may be intermittently fluctuating even farther out of spec. That can cause random disconnects, spontaneous re-booting of the modem, speed, packet loss, latency problems, and the un-bonding of channels.

In an 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 5-1000 MHz, bi-directional, and no gold colored garbage from Radio Shack, Home Depot, Target, etc. Splitters should be swapped with known to be good / new ones to test.

Also check the coax cable for any damage such as cuts, nicks, kinks, sharp bends, etc.

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.


Good luck with it !

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