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......
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:
|Frequency||507000000 Hz||525000000 Hz||531000000 Hz||549000000 Hz||591000000 Hz|
|Signal to Noise Ratio||39 dB||39 dB||39 dB||39 dB||38 dB|
|Power Level |
|1 dBmV||1 dBmV||1 dBmV||1 dBmV||0 dBmV|
|Frequency||19400000 Hz||24200000 Hz||30600000 Hz||37000000 Hz|
|Ranging Service ID||5884||5884||5884||5884|
|Symbol Rate||2.560 Msym/sec||5.120 Msym/sec||5.120 Msym/sec||2.560 Msym/sec|
|Power Level||43 dBmV||44 dBmV||44 dBmV||44 dBmV|
|Upstream Modulation|| QPSK|
|Total Unerrored Codewords||2521184701||2248470099||2248527049||2248590621||2189758306|
|Total Correctable Codewords||2||82||65||61||81|
|Total Uncorrectable Codewords||504||2689||3603||3493||3101|
>> 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!
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)
This is my firmware:
Model Name: SB6141
Vendor Name: ARRIS Group, Inc.
Firmware Name: SB_KOMODO-220.127.116.11-SCM00-NOSH
Boot Version: PSPU-Boot(25CLK) 18.104.22.168m3
Hardware Version: 7.0
Serial Number: 359781315023429209030011
Firmware Build Time: Jul 22 2016 08:13:57