Stretchman21's profile

Contributor

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35 Messages

Sun, Aug 28, 2022 10:32 PM

Closed

Motorola MB8611

   1 Locked QAM256 29 621.0 0.9 40.3 0 0
   2 Locked QAM256 14 525.0 0.9 34.6 0 0
   3 Locked QAM256 15 531.0 1.0 32.4 599074 157136
   4 Locked QAM256 16 537.0 0.9 27.7 6137668 297322
   5 Locked QAM256 17 543.0 0.8 26.9 66118675 31104969
   6 Locked QAM256 18 555.0 0.9 27.1 61788090 59293543
   7 Locked QAM256 19 561.0 0.8 0.0 64881842 61362690
   8 Locked Unknown 20 567.0 0.7 0.0 899281 0
   9 Locked QAM256 21 573.0 0.8 27.7 81839872 43811810
   10 Locked QAM256 22 579.0 1.8 32.1 8564 0
   11 Locked QAM256 23 585.0 1.8 39.2 0 0
   12 Locked QAM256 24 591.0 1.9 40.8 0 0
   13 Locked QAM256 25 597.0 2.1 39.8 0 0
   14 Locked QAM256 26 603.0 2.0 39.9 0 0
   15 Locked QAM256 27 609.0 1.9 41.5 0 0
   16 Locked QAM256 28 615.0 1.7 42.0 0 0
   17 Locked QAM256 30 627.0 1.7 39.3 0 0
   18 Locked QAM256 31 633.0 1.6 38.2 1 0
   19 Locked QAM256 32 639.0 1.4 40.3 0 0
   20 Locked QAM256 33 645.0 1.5 42.1 0 0
   21 Locked QAM256 34 651.0 1.7 42.1 0 0
   22 Locked QAM256 35 657.0 1.3 42.0 0 0
   23 Locked QAM256 36 663.0 1.3 42.0 0 0
   24 Locked QAM256 37 669.0 1.4 42.1 20395 24433
   25 Locked QAM256 38 675.0 1.2 41.4 2604 2714
   26 Locked QAM256 39 681.0 1.0 41.9 282 501
   27 Locked QAM256 40 687.0 1.0 42.1 1254 2254
   28 Locked QAM256 41 693.0 1.0 42.1 0 0
   29 Locked QAM256 42 699.0 0.8 41.9 33055 17478
   30 Locked QAM256 43 705.0 0.1 41.9 12747 21361
   31 Locked QAM256 44 711.0 0.2 41.8 0 0
   32 Locked OFDM PLC 45 762.0 0.6 40.8 262590551 0
  1 Locked SC-QAM 1 5120 35.6 54.0
   2 Locked SC-QAM 2 5120 29.2 54.8
   3 Locked SC-QAM 3 5120 22.8 55.0
   4 Locked SC-QAM 4 5120 16.4 56.0
   5 Locked SC-QAM 5 1280 39.6 52.8

Connecttivity issues at 1 gig speeds. Sometimes, the speed test reports back fine, other times, no joy, and I am at about 100Mbps.

I have tried to reset the modem to factory defaults. I have changed out the ethernet cable, and checked the coax going into the modem. For what it's worth, I already have a service call scheduled for Thursday. I am just wondering if there's anything I can do that might fix it without having to do a service call? 

Accepted Solution

EG

Expert

 • 

95.9K Messages

1 m ago

The upstream power is too high / out of spec. And the SNR value on some of the downstream channels is too low / out of spec. That can cause random disconnects, spontaneous re-booting of the modem, speed, packet loss, latency problems, and the un-bonding of channels.

In an effort to try to obtain better connectivity / more wiggle room, check to see if there are there any excess/unneeded coax cable splitters in the line leading to the modem that can be eliminated/re-configured. Any splitters that remain should be high quality and cable rated for 5-1000 MHz, bi-directional, and no gold colored garbage from Radio Shack, Home Depot, Target, etc. Splitters should be swapped with known to be good / new ones to test.

Also check the coax cable for any damage such as cuts, nicks, abrasions, kinks, sharp bends, etc.

If there aren't any unneeded splitters that can be eliminated and if your coax wiring setup can't be reconfigured so that there is a single two-way splitter connected directly off of the drop from the street / pole with one port feeding the modem and the other port feeding the rest of the house/equipment with additional splits as needed and you've checked all the wiring and fittings for integrity and tightness and refresh them by taking them apart then check for and clean off any corrosion / oxidation on the center wire and put them back together again, then perhaps it's best to let the tech investigate and correct the problem.

Also. Bear in mind that if the premises facing techs can not find or fix a problem at your home, it is they who are responsible for escalating it to their line / network / maintenance dept. techs. The problem may lie beyond your home in the local neighborhood infrastructure somewhere but it is their S.O.P. to start at the home. And if the problem is found to be on their side of the demarcation point, there will not be any charge.


Good luck !



(edited)

Contributor

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35 Messages

@EG​ Sorry for the delay in replying. I had a tech come out, and we found that the coax had literally snapped. He rerouted the ground wire and cut out the bad section of coax, As soon as he was done, the connection came right back up and has been rock solid ever since. I have to catch the 100 dollar service charge, because I think my electricians might have been the ones to wreck the cable when they had to relocate the box. No issues there, I gig working as advertised. 

EG

Expert

 • 

95.9K Messages

12 d ago

@Stretchman21 

Glad you got it squared away ! Now closing your marked "Solved" topic.

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