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Thursday, February 27th, 2025 11:05 PM

Internet, Repeated Drops, Arris G36

With my Internet, I've had an issue with my Router dropping internet connectivity every 2 hours or so, requiring me to restart the gateway. I am using an Arris G36 combination modem/router. I have had a technician out to investigate, and my router is currently plugged into the direct feed from the street. I am still having this issue after the technician was here. I have attached images of my event logs and current Upstream/Downstream signals.

Gold Problem Solver

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26.3K Messages

2 months ago

The upstream power levels are out of spec (too high).  This indicates a problem with the link between your gateway and Comcast's network. These are often due to poor coax connections or damaged coax cable, usually in or near your home. Running the cable through a surge protector, a defective splitter, or too many splitters can cause signal problems as well. If there is an amplifier in the line make sure it's getting power. 

If you want to troubleshoot this yourself, please see Internet Troubleshooting Tips. If you still need help, you'll need to bring a premise tech back out to identify the cause and correct it.

If the tech finds bad coax, splitters, amplifiers, or connections in your home (even if Comcast originally supplied them) you'll probably have to pay for the visit (approx $100) unless you have their Service Protection Plan ( https://www.xfinity.com/support/articles/service-protection-plan, closed to customers that don't already have it). If the trouble is due to a faulty Comcast rental device or anything outside your home you shouldn't be charged.

Please be aware that there are 2 kinds of responses in this Forum: Replies and Comments. When you Comment on a post by scrolling down to "Comment on this post here...", I am notified of your response. But if you select Reply, I am NOT notified and may not be aware of your response.

2 Messages

@BruceW Thanks for the information. The day after I made the post, the upstream DB levels dropped to around the attached levels. I have had to power cycle the modem twice in that interval. At this point there is no additional device in the coax line from the Comcast feed other than the main coax line coming from the filter to the modem and that I am getting random upstream power spikes that are triggering my disconnects. I'm assuming that I will need to have the Xfinity tech verify the signal through each specific piece of Coax. 

Official Employee

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1.7K Messages

@BruceW Thank you for assisting!

 

@user_s4wfam Please let us know by way of Direct Message if we may assist in getting a tech scheduled for you. We look forward to hearing back.

 

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