Motorola MB8611 Corrected and Uncorrected errors on Downstream Channels and Terrible internet Speed/internmittent connectivity

There are a bunch of borked downstream channels (not locked, out-of-spec SNR's, and a large number of uncorrected bit errors. 4 of the 5 upstream channel power levels are too high / out of spec as well.

That can cause random disconnects, spontaneous re-booting of the modem, speed, packet loss, latency problems, and the un-bonding of channels. Here's some stuff that you can try while waiting for the next tech visit;

In an effort to try to obtain better connectivity, check to see if there are 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 5-1002 MHz, bi-directional, and no gold colored garbage from Home Depot, Target, Wal-Mart, 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 book a tech visit to investigate and correct.

Good luck with it !

P.S.;

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 up 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.

Please update your topic here with how things turn out. Thanks ! Best of luck with it !

Advanced tech came out and I showed him the power levels on the modem they were hitting almost 60 on the upstream channels. He said it was very high.

He climbed the pole and hooked into the tap as well as replaced all my outside connections.

Still having fluctuations. He escalated the ticket and found it is related to new Fiber they are laying down the road and it is affecting our whole neighborhood. They are sending out another tech to look at the node down the road because the issue seems to be there and affecting our entire neighborhood for the last week.

Luckily I am a network engineer and was able to show them the problem quickly and get them to escalate this, My neighbors can thank me later I guess :D

Right now I am able to use the internet but the power levels are still fluctuating wildly every so often

Thanks for the update ! I hope that they get this squared away for you ! Best of luck with it ! Feel free to post back again with how it goes.