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joshua4242's avatar
joshua4242
Aspirant
Feb 08, 2022
Solved

Any way to email logs on CM2000?

I'm having issues with Comcast/Xfinity and T3 timeouts, and would like to show them a day of logs to illustrate how many times my internet goes out. However, the event logs on my CM2000 only holds 40...
  • FURRYe38's avatar
    FURRYe38
    Feb 11, 2022

    Power seems a bit on the high side however with in spec. Might check to see if ISP can turn his down just a bit. 

     

    However your getting lots of correct and un-correctables which should be mostly near zero. 

    You need to check the coax line, connectors, ensure connector is fully seated and screwed into the modems coax jack and remove any splitters if possible to test. 

     

    ISP should check this line as well UP to the modem. 

joshua4242's avatar
joshua4242
Aspirant
Feb 11, 2022
Frequency start Value
This field below allows you to modify the frequency the cable modem start with its scan during initialization and registration. Enter the new start frequency and restart the cable modem for it to take effect.
Starting Frequency
 

Startup Procedure

ProcedureStatusComment
Acquire Downstream Channel651000000 HzLocked
Connectivity StateOKOperational
Boot StateOKOperational
SecurityEnabledBPI+
 

Downstream Bonded Channels

ChannelLock StatusModulationChannel IDFrequencyPowerSNRCorrectablesUncorrectables
1LockedQAM25625651000000 Hz6.4 dBmV42.1 dB149993211
2LockedQAM2561507000000 Hz3.8 dBmV42.1 dB288195617
3LockedQAM2562513000000 Hz4.0 dBmV42.3 dB294006023
4LockedQAM2563519000000 Hz4.0 dBmV42.3 dB277866181
5LockedQAM2564525000000 Hz4.0 dBmV42.4 dB252265650
6LockedQAM2565531000000 Hz4.0 dBmV42.3 dB247115689
7LockedQAM2566537000000 Hz5.0 dBmV42.6 dB264586087
8LockedQAM2567543000000 Hz5.3 dBmV42.8 dB295726904
9LockedQAM2568549000000 Hz5.6 dBmV42.8 dB278975859
10LockedQAM2569555000000 Hz5.7 dBmV42.8 dB220443607
11LockedQAM25610561000000 Hz6.0 dBmV42.9 dB184683101
12LockedQAM25611567000000 Hz5.7 dBmV42.7 dB182203755
13LockedQAM25612573000000 Hz5.9 dBmV42.8 dB197084307
14LockedQAM25613579000000 Hz6.2 dBmV42.9 dB193844119
15LockedQAM25614585000000 Hz6.7 dBmV43.0 dB203334080
16LockedQAM25615591000000 Hz6.7 dBmV42.8 dB226414480
17LockedQAM25616597000000 Hz7.1 dBmV42.8 dB197073486
18LockedQAM25617603000000 Hz7.0 dBmV42.8 dB139792989
19LockedQAM25618609000000 Hz6.8 dBmV42.5 dB133032490
20LockedQAM25619615000000 Hz6.6 dBmV42.5 dB135782385
21LockedQAM25620621000000 Hz6.9 dBmV42.6 dB163032984
22LockedQAM25621627000000 Hz6.8 dBmV42.4 dB164473595
23LockedQAM25622633000000 Hz7.3 dBmV42.5 dB148623859
24LockedQAM25623639000000 Hz7.2 dBmV42.5 dB179903754
25LockedQAM25624645000000 Hz7.5 dBmV42.5 dB189533551
26LockedQAM25626657000000 Hz6.9 dBmV42.2 dB178362329
27LockedQAM25627663000000 Hz6.8 dBmV42.2 dB138231996
28LockedQAM25628669000000 Hz6.8 dBmV42.0 dB152712139
29LockedQAM25629675000000 Hz6.6 dBmV41.3 dB158682445
30LockedQAM25630681000000 Hz7.1 dBmV42.1 dB113952763
31LockedQAM25631687000000 Hz7.2 dBmV41.9 dB70562913
32Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
 

Upstream Bonded Channels

ChannelLock StatusUS Channel TypeChannel IDSymbol RateFrequencyPower
1LockedATDMA25512017300000 Hz51.0 dBmV
2LockedATDMA26512023700000 Hz47.3 dBmV
3LockedATDMA27512030100000 Hz47.3 dBmV
4LockedATDMA28512036500000 Hz44.0 dBmV
5Not LockedUnknown000 Hz0.0 dBmV
6Not LockedUnknown000 Hz0.0 dBmV
7Not LockedUnknown000 Hz0.0 dBmV
8Not LockedUnknown000 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 ,333780000000 Hz8.1 dBmV41.1 dB1108 ~ 2987114762054091436164848230208
2Not Locked000 Hz0 dBmV0.0 dB0 ~ 4095000
 

Upstream OFDMA Channels

ChannelLock StatusModulation / Profile IDChannel IDFrequencyPower
1Not Locked000 Hz0 dBmV
2Not Locked000 Hz0 dBmV
FURRYe38's avatar
FURRYe38
Guru - Experienced User
Feb 11, 2022

Power seems a bit on the high side however with in spec. Might check to see if ISP can turn his down just a bit. 

 

However your getting lots of correct and un-correctables which should be mostly near zero. 

You need to check the coax line, connectors, ensure connector is fully seated and screwed into the modems coax jack and remove any splitters if possible to test. 

 

ISP should check this line as well UP to the modem. 

  • joshua4242's avatar
    joshua4242
    Aspirant
    Feb 17, 2022

    I completely redid my setup and moved the modem as close as possible to where the cable enters the house. The problem seems to have disappeared, with no uncorrectables over the last 48 hours. It looks like previous placement for the modem travelled along 3 segments of coax inside the house, and one of them is very hard to reach. The xfinity techs only replaced the easy to reach sections, so they never actually fixed the segment that was causing the problem. 

     

    • FURRYe38's avatar
      FURRYe38
      Guru - Experienced User
      Feb 18, 2022

      Ya think they would have caught that. Well, Glad you got it working. 
      Enjoy. 📡