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Tuesday, November 17th, 2020 3:00 PM

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Modem Errors and Random Disconnects Multiple Times per Day

I had my Netgear CM1150V (FW 4.02.02) reprovisioned last night. I am getting random disconnects and speed varies drastically - usually a modem reset clears the issue for a period (but it is hurting productivity).

 

I am seeing these errors today (MAC addresses obfuscated by me) and they correspond to drops in service.

 

The power does fluctuate on the channels but I think it is in range?

 

What are the best next steps to avoid these random disconnects multiple times per day in service?

 

TimePriorityDescription
Tue Nov 17 16:14:22 2020Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Tue Nov 17 11:03:28 2020Notice (6)CM-STATUS message sent. Event Type Code: 22; Chan ID: 48; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Tue Nov 17 11:03:00 2020Notice (6)CM-STATUS message sent. Event Type Code: 20; Chan ID: 48; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Tue Nov 17 08:21:29 2020Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;

 

Startup Procedure
ProcedureStatusComment
Acquire Downstream Channel507000000 HzLocked
Connectivity StateOKOperational
Boot StateOKOperational
SecurityEnabledBPI+
IP Provisioning ModeHonor MDDhonorMdd(4)
 
Downstream Bonded Channels
ChannelLock StatusModulationChannel IDFrequencyPowerSNRCorrectablesUncorrectables
1LockedQAM25620507000000 Hz-1.9 dBmV42.7 dB00
2LockedQAM2564405000000 Hz-3.2 dBmV42.4 dB00
3LockedQAM2565411000000 Hz-3.2 dBmV42.5 dB00
4LockedQAM2566417000000 Hz-3.4 dBmV42.4 dB00
5LockedQAM2567423000000 Hz-3.1 dBmV42.5 dB00
6LockedQAM2568429000000 Hz-3.1 dBmV42.5 dB00
7LockedQAM2569435000000 Hz-2.7 dBmV42.7 dB00
8LockedQAM25610441000000 Hz-2.6 dBmV42.8 dB00
9LockedQAM25611447000000 Hz-2.4 dBmV42.8 dB00
10LockedQAM25612453000000 Hz-2.2 dBmV42.9 dB00
11LockedQAM25613459000000 Hz-2.1 dBmV42.9 dB00
12LockedQAM25614465000000 Hz-2 dBmV42.9 dB00
13LockedQAM25615471000000 Hz-2.3 dBmV42.8 dB00
14LockedQAM25616477000000 Hz-2.1 dBmV42.8 dB00
15LockedQAM25617483000000 Hz-2.3 dBmV42.7 dB00
16LockedQAM25618489000000 Hz-2.2 dBmV42.8 dB00
17LockedQAM25619495000000 Hz-2.3 dBmV42.7 dB00
18LockedQAM25621513000000 Hz-1.8 dBmV42.9 dB00
19LockedQAM25622519000000 Hz-1.6 dBmV42.9 dB00
20LockedQAM25623525000000 Hz-1.8 dBmV42.7 dB00
21LockedQAM25624531000000 Hz-1.8 dBmV42.7 dB00
22LockedQAM25625537000000 Hz-1.8 dBmV42.7 dB00
23LockedQAM25626543000000 Hz-2 dBmV42.5 dB00
24LockedQAM25627549000000 Hz-2.1 dBmV42.5 dB00
25LockedQAM25628555000000 Hz-2.3 dBmV42.3 dB00
26LockedQAM25629561000000 Hz-2 dBmV42.4 dB00
27LockedQAM25630567000000 Hz-1.9 dBmV42.5 dB00
28LockedQAM25631573000000 Hz-1.9 dBmV42.2 dB00
29LockedQAM25632579000000 Hz-2 dBmV42.1 dB00
30LockedQAM25633585000000 Hz-2 dBmV42 dB00
31LockedQAM25634591000000 Hz-2.1 dBmV41.8 dB50
32Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
 
Upstream Bonded Channels
ChannelLock StatusUS Channel TypeChannel IDSymbol RateFrequencyPower
1LockedATDMA15120 Ksym/sec36500000 Hz51 dBmV
2LockedATDMA25120 Ksym/sec30100000 Hz51 dBmV
3LockedATDMA35120 Ksym/sec23700000 Hz50.5 dBmV
4LockedATDMA45120 Ksym/sec17300000 Hz50 dBmV
5Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
6Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
7Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
8Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
 
Downstream OFDM Channels
ChannelLock
Status
Modulation /
Profile ID
Channel
ID
FrequencyPowerSNR /
MER
Active Subcarrier
Number Range
Unerrored
Codewords
Correctable
Codewords
Uncorrectable
Codewords
1Locked0 ,1 ,2 ,348722000000 Hz0.0 dBmV42.0 dB1108 ~ 298710450451347012971960
2Not Locked000 Hz0 dBmV0.0 dB0 ~ 4095000
 
Upstream OFDMA Channels
ChannelLock StatusModulation / Profile IDChannel IDFrequencyPower
1Not Locked000 Hz0 dBmV
2Not Locked000 Hz0 dBmV
 
Current System Time:Tue Nov 17 16:27:42 2020

 

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