Community Forum

Lose internet connection once a day

Highlighted
Regular Visitor

Lose internet connection once a day

Last week we got our service installed and since then we have been loosing internet connection about once a day. I still get a wifi singal but it just says no Internet connection and it lasts about 2 - 4 minutes until it fixes itself. 

 

Here is my event log from the last week, the internet started working again after each one

 

[Dhcpc][18787]: erouter0 got new IP 73.XX.XXX.XXX
2020/7/21 11:43:27 Notice

[Dhcpc][315]: erouter0 got new IP  73.XX.XXX.XXX
2020/7/20 05:38:59 Notice

[Dhcpc][22767]: erouter0 got new IP  73.XX.XXX.XXX
2020/7/19 17:28:18 Notice

 

 And here are the power levels for the modem

 Upstream https://imgur.com/a/M45YA9P 

 Downstream https://imgur.com/a/o4LKuTU 

Highlighted
Expert

Re: Lose internet connection once a day

The upstream power is too high and it may be intermittently fluctuating even higher to out of spec levels. That can cause random disconnects, spontaneous re-booting of the modem, speed, packet loss, latency problems, and the un-bonding of channels.

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.



I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark the post as Best Answer!