Established Sharer

Re: Another Lost MDD Timeout...

What a difference! 

Expert

Re: Another Lost MDD Timeout...

Double whammy in the JB, not only an 8 way but with 3 open ports... figures, total incompetence... Find the modem line, connect it to the right side of the grounding block and you'll see DS around 0 dBmv and the US around +45 dBmv.

Also make sure the connectors are a tad more than finger tight....

repost the levels......

Browser

Re: Another Lost MDD Timeout...

I do still get those lost mdd timeout messages, but so far the speed is holding up. I'm measuring that every hour for now.

Latest signal reading:

Downstream Bonding Channel Value
Channel ID 9 12 15 20 21 23
Frequency 507000000 Hz 525000000 Hz 543000000 Hz 573000000 Hz 579000000 Hz 591000000 Hz
Signal to Noise Ratio 39 dB 39 dB 39 dB 38 dB 38 dB 38 dB
Downstream Modulation QAM256 QAM256 QAM256 QAM256 QAM256 QAM256
Power Level
The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading
1 dBmV 1 dBmV 1 dBmV 1 dBmV 0 dBmV 0 dBmV
Upstream Bonding Channel Value
Channel ID 5 6 7 8
Frequency 19400000 Hz 24200000 Hz 30600000 Hz 37000000 Hz
Ranging Service ID 499 499 499 499
Symbol Rate 2.560 Msym/sec 5.120 Msym/sec 5.120 Msym/sec 2.560 Msym/sec
Power Level 44 dBmV 44 dBmV 44 dBmV 44 dBmV
Upstream Modulation [3] QPSK
[2] 16QAM
[3] QPSK
[1] 16QAM
[2] 64QAM
[3] QPSK
[1] 16QAM
[2] 64QAM
[3] QPSK
[3] 16QAM

Ranging Status Success Success Success Success
Signal Stats (Codewords) Bonding Channel Value
Channel ID 9 12 15 20 21 23
Total Unerrored Codewords 3282489891 3264851518 3241171013 3241221808 3198234783 3198221789
Total Correctable Codewords 94 173 203 148 175 192
Total Uncorrectable Codewords 512 1186 2535 2515 2698 2717
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Re: Another Lost MDD Timeout...

Oh well, last night it went slow on me again, had to reboot the cable modem.  A bit strange, the last "Lost MDD Timeout" message was from last night, Jul 15 2017 23:31:58. Nothing else in the log. Could it be a modem issue, Motorola SB6141?

 

 

Current signal page:

DownstreamBonding Channel Value
Channel ID12 13 16 23 
Frequency507000000 Hz 525000000 Hz 531000000 Hz 549000000 Hz 591000000 Hz 
Signal to Noise Ratio39 dB 39 dB 39 dB 39 dB 38 dB 
Downstream ModulationQAM256 QAM256 QAM256 QAM256 QAM256 
Power Level
The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading
1 dBmV  1 dBmV  1 dBmV  1 dBmV  0 dBmV  

 

UpstreamBonding Channel Value
Channel ID
Frequency19400000 Hz 24200000 Hz 30600000 Hz 37000000 Hz 
Ranging Service ID5884 5884 5884 5884 
Symbol Rate2.560 Msym/sec 5.120 Msym/sec 5.120 Msym/sec 2.560 Msym/sec 
Power Level43 dBmV 44 dBmV 44 dBmV 44 dBmV 
Upstream Modulation[3] QPSK
[2] 16QAM
 
[3] QPSK
[1] 16QAM
[2] 64QAM
 
[3] QPSK
[1] 16QAM
[2] 64QAM
 
[3] QPSK
[3] 16QAM
 
Ranging StatusSuccess Success Success Success 

 

Signal Stats (Codewords)Bonding Channel Value
Channel ID12 13 16 23 
Total Unerrored Codewords2521184701 2248470099 2248527049 2248590621 2189758306 
Total Correctable Codewords82 65 61 81 
Total Uncorrectable Codewords504 2689 3603 3493 3101 
Expert

Re: Another Lost MDD Timeout...

Coaxial issue....

Disconnect the coax, then do a reset to factory defaults, unpower modem, reconnect coax, see if you get 8 channels in a row.

 

Browser

Re: Another Lost MDD Timeout...

>> Disconnect the coax, then do a reset to factory defaults, unpower modem, reconnect coax, see if you get 8 channels in a row.

 

The "factory reset" option disappeared from the web interface a while ago.  

 

I setup a script to check the speed and added a Wemo switch which I use to turn off/turn on the cable modem when the speed is slow (done by that script). That way I don't really have to think about it :-)

 

Thanks for all your help, sorry for the late reply!

Expert

Re: Another Lost MDD Timeout...

The factory reset is still there, you need to disconnect the coax for it to reappear;

 

Browser

Re: Another Lost MDD Timeout...

The "factory reset", what worries me is it would mess up my setup/connection to TWC. Is it harmless in that respect?

Expert

Re: Another Lost MDD Timeout...

It's the only way I know of to restore the proper 8 downstream channels...

and hopefully they're in sequence.

What should happen is after you do the reset, you'll see it say resetting in 10 seconds then your computer will say ethernet connection lost, after a minute modem lites go out of test and I think only the DS starts flashing, Then I believe you need to unplug power, reconnect the coax, reapply power. The modem then should rescan lock on blue US/DS lights and probably within a miunute, go steady green as it's downloading a new TWC/Spectum provisioning/firmware file, when they go blue again, you should be able to go online.

 

But throughout the sequenc, you'll see events logged in the error/event log.

Do you have the june 2016 fw version, they updated mine last week, header and footers are now ARRIS instead of Motorola. it appears iut did not reset the channels in mine, i still have a couple skipped that have broadcast TV ingress (that the line crews won't fix)

 

 

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Re: Another Lost MDD Timeout...

This is my firmware:

Model Name: SB6141
Vendor Name: ARRIS Group, Inc. 
Firmware Name: SB_KOMODO-1.0.7.0-SCM00-NOSH
Boot Version: PSPU-Boot(25CLK) 1.0.12.18m3
Hardware Version: 7.0
Serial Number: 359781315023429209030011
Firmware Build Time: Jul 22 2016 08:13:57