How do I diagnose a potentially failing cable modem? | Forum

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Kevin crowe
Kevin crowe Jun 12 '18
Hello,


For the last couple of weeks I've had "hiccups" every other day or so in my internet connection (Comcast with a Motorola SB5100 modem). I look over at the modem and the "Send" light is usually blinking. The problem goes away in anywhere from 1 - 5 minutes. I have not changed anything on my side.Is there anything I can do to tell if the problem is with the modem? What are the symptoms of a failing modem? Using speedtest.net I get speeds of 28.93/5.85 if that says anything.EDIT: I realized that I could access the modem status page through the router (thought I needed a direct connection for some reason):Downstream Signal to Noise Ratio: 39 dBDownstream Power Level: 4 dBmVUpstream Power Level: 54 dBmV


Please help
I didn't find the right solution from the internet.


References:

https://arstechnica.com/civis/viewtopic.php?f=10&t=1234891

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Thank you

The Forum post is edited by Kevin crowe Jun 12 '18
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