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dbzerker
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Wednesday, January 27th, 2021 8:00 AM

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CM1150V - Started Unicast Maintenance Ranging - No Response received - T3 time-out

Hello,

 

Over the last few weeks my internet has had an increasing number of connection issues. Comcast (online) reports not being able to locate the modem and my log fills up with the following message: "Started Unicast Maintenance Ranging - No Response received - T3 time-out". The modem's channel powers, SNRs, etc., all seem fine. I still have internet connectivity when this occurs, but with high latency and frequent drop-outs. Services like Alexa become unresponsive and we have some streaming issues. This affects both wired and unwired (ubiquiti) connections.

 

A factory reset of the CM1150V fixes the problem, but only for a little while. I've checked all of the connections in the home and everything seems good there. Should I have a tech come out? Have the modem re-provisioned? Logs are posted below.

 

This log includes a factory reset after several Unicast Ranging messages. The connection was fine overnight until this morning when the error has reappeared.

 

Thanks, 

Jason

 

 

Wed Jan 27 08:49:56 2021

Critical (3)

Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=28:80:88:d4:9d:08;CMTS-MAC=00:01:5c:64:20:79;CM-QOS=1.1;CM-VER=3.1;

Wed Jan 27 00:14:05 2021

Notice (6)

CM-STATUS message sent. Event Type Code: 5; Chan ID: 48; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=28:80:88:d4:9d:08;CMTS-MAC=00:01:5c:64:20:79;CM-QOS=1.1;CM-VER=3.1;

Wed Jan 27 00:13:51 2021

Notice (6)

DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=28:80:88:d4:9d:08;CMTS-MAC=00:01:5c:64:20:79;CM-QOS=1.1;CM-VER=3.1;

Wed Jan 27 00:13:50 2021

Notice (6)

TLV-11 - unrecognized OID;CM-MAC=28:80:88:d4:9d:08;CMTS-MAC=00:01:5c:64:20:79;CM-QOS=1.1;CM-VER=3.1;

Wed Jan 27 00:13:42 2021

Notice (6)

Honoring MDD; IP provisioning mode = IPv6

Wed Jan 27 00:13:39 2021

Critical (3)

No Ranging Response received - T3 time-out;CM-MAC=28:80:88:d4:9d:08;CMTS-MAC=00:01:5c:64:20:79;CM-QOS=1.1;CM-VER=3.1;

Wed Jan 27 00:13:33 2021

Critical (3)

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=28:80:88:d4:9d:08;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

Wed Jan 27 00:13:31 2021

Warning (5)

Lost MDD Timeout;CM-MAC=28:80:88:d4:9d:08;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

Wed Jan 27 00:13:24 2021

Critical (3)

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=28:80:88:d4:9d:08;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

Wed Jan 27 00:13:06 2021

Critical (3)

Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=28:80:88:d4:9d:08;CMTS-MAC=00:01:5c:64:20:79;CM-QOS=1.1;CM-VER=3.1;

Wed Jan 27 00:12:23 2021

Notice (6)

DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=28:80:88:d4:9d:08;CMTS-MAC=00:01:5c:64:20:79;CM-QOS=1.1;CM-VER=3.1;

Wed Jan 27 00:12:22 2021

Critical (3)

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=28:80:88:d4:9d:08;CMTS-MAC=00:01:5c:64:20:79;CM-QOS=1.1;CM-VER=3.1;

Wed Jan 27 00:12:16 2021

Notice (6)

TLV-11 - unrecognized OID;CM-MAC=28:80:88:d4:9d:08;CMTS-MAC=00:01:5c:64:20:79;CM-QOS=1.1;CM-VER=3.1;

Time Not Established

Notice (6)

Honoring MDD; IP provisioning mode = IPv6

Time Not Established

Warning (5)

Lost MDD Timeout;CM-MAC=28:80:88:d4:9d:08;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

Time Not Established

Critical (3)

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=28:80:88:d4:9d:08;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

 

Downstream Bonded Channels:

 

Channel

Lock Status

Modulation

Channel ID

Frequency

Power

SNR

Correctables

Uncorrectables

1

Locked

QAM256

40

681000000 Hz

4.9 dBmV

43 dB

0

0

2

Locked

QAM256

17

543000000 Hz

3.7 dBmV

43.3 dB

0

0

3

Locked

QAM256

18

549000000 Hz

3.9 dBmV

43.2 dB

0

0

4

Locked

QAM256

19

555000000 Hz

3.6 dBmV

42.7 dB

0

0

5

Locked

QAM256

20

561000000 Hz

3.7 dBmV

42.9 dB

0

0

6

Locked

QAM256

21

567000000 Hz

3.6 dBmV

43 dB

0

0

7

Locked

QAM256

22

573000000 Hz

3.6 dBmV

43 dB

0

0

8

Locked

QAM256

23

579000000 Hz

3.8 dBmV

42.8 dB

0

0

9

Locked

QAM256

24

585000000 Hz

3.9 dBmV

43.1 dB

0

0

10

Locked

QAM256

25

591000000 Hz

3.8 dBmV

43 dB

0

0

11

Locked

QAM256

26

597000000 Hz

3.9 dBmV

43.1 dB

0

0

12

Locked

QAM256

27

603000000 Hz

3.7 dBmV

42.9 dB

0

0

13

Locked

QAM256

28

609000000 Hz

3.9 dBmV

42.9 dB

0

0

14

Locked

QAM256

29

615000000 Hz

4.4 dBmV

43.1 dB

0

0

15

Locked

QAM256

30

621000000 Hz

4.4 dBmV

43.1 dB

0

0

16

Locked

QAM256

31

627000000 Hz

4.5 dBmV

43 dB

0

0

17

Locked

QAM256

32

633000000 Hz

4.6 dBmV

43 dB

0

0

18

Locked

QAM256

33

639000000 Hz

4.6 dBmV

43.1 dB

0

0

19

Locked

QAM256

34

645000000 Hz

4.9 dBmV

43.1 dB

0

0

20

Locked

QAM256

35

651000000 Hz

5.1 dBmV

43.1 dB

0

0

21

Locked

QAM256

36

657000000 Hz

4.9 dBmV

43.1 dB

0

0

22

Locked

QAM256

37

663000000 Hz

5.2 dBmV

43.1 dB

0

0

23

Locked

QAM256

38

669000000 Hz

5.2 dBmV

43.1 dB

0

0

24

Locked

QAM256

39

675000000 Hz

5.1 dBmV

42.4 dB

0

0

25

Locked

QAM256

41

687000000 Hz

5 dBmV

43.1 dB

0

0

26

Locked

QAM256

42

693000000 Hz

5.2 dBmV

43.1 dB

0

0

27

Locked

QAM256

43

699000000 Hz

5.3 dBmV

43.2 dB

0

0

28

Locked

QAM256

44

705000000 Hz

5.3 dBmV

43.1 dB

0

0

29

Locked

QAM256

45

711000000 Hz

5.3 dBmV

43.1 dB

0

0

30

Locked

QAM256

46

717000000 Hz

5.3 dBmV

43.1 dB

0

0

31

Locked

QAM256

47

723000000 Hz

5.1 dBmV

43 dB

0

0

32

Not Locked

Unknown

0

0 Hz

0.0 dBmV

0.0 dB

0

0

 

Upstream Bonded Channels

Channel

Lock Status

US Channel Type

Channel ID

Symbol Rate

Frequency

Power

1

Locked

ATDMA

1

5120 Ksym/sec

19300000 Hz

46.5 dBmV

2

Locked

ATDMA

2

5120 Ksym/sec

25700000 Hz

45.8 dBmV

3

Locked

ATDMA

3

5120 Ksym/sec

32300000 Hz

45.3 dBmV

4

Locked

ATDMA

4

5120 Ksym/sec

38700000 Hz

45.3 dBmV

5

Not Locked

Unknown

0

0 Ksym/sec

0 Hz

0.0 dBmV

6

Not Locked

Unknown

0

0 Ksym/sec

0 Hz

0.0 dBmV

7

Not Locked

Unknown

0

0 Ksym/sec

0 Hz

0.0 dBmV

8

Not Locked

Unknown

0

0 Ksym/sec

0 Hz

0.0 dBmV

 

Downstream OFDM Channels

Channel

Lock
Status

Modulation /
Profile ID

Channel
ID

Frequency

Power

SNR /
MER

Active Subcarrier
Number Range

Unerrored
Codewords

Correctable
Codewords

Uncorrectable
Codewords

1

Locked

0 ,1 ,2 ,3

48

850000000 Hz

4.8 dBmV

42.2 dB

1108 ~ 2987

160637034

118919657

0

2

Not Locked

0

0

0 Hz

0 dBmV

0.0 dB

0 ~ 4095

0

0

0

 

Upstream OFDMA Channels

Channel

Lock Status

Modulation / Profile ID

Channel ID

Frequency

Power

1

Not Locked

0

0

0 Hz

0 dBmV

2

Not Locked

0

0

0 Hz

0 dBmV

 

Question

158

0

0

0

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