Xfinity plant
Community Forum
Xfinity globe

Random DC's since installing sb8200 Help!

Regular Visitor

Random DC's since installing sb8200 Help!

Hello, Looking for some advice.  I had a sb6141 and didnt have random dc's, however since changing to the sb8200 i have started having random dc's.  Durring that time all the lights on the modem stay on and solid however there is zero internet connection.  Typically lasts 2-3 min.  Help!

-Thanks

 

Untitled.jpgUntitled2.jpgUntitled3.jpgUntitled4.jpg

Expert

Re: Random DC's since installing sb8200 Help!

Not sure that this is the root cause of the problem but the downstream power is a bit on the weak side and may be intermittently fluctuating even lower out of spec. That can cause random disconnects, spontaneous re-booting of the modem, and speed and latency problems.

In a self troubleshooting 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 5-1002 MHz, bi-directional, and no gold colored garbage types like GE, RadioShack, RCA, Philips, Leviton, Magnavox, and Rocketfish from big box stores like Home Depot, Lowes, Target, Wal-Mart etc. Splitters should be swapped with known to be good / new ones to test

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.