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Home Networking · Topic
Every Home Networking article tagged Modem, newest first.
8 articles
Troubleshooting
What does that blinking light on your modem or router mean? This guide covers every LED color and pattern across Xfinity, Spectrum, AT&T, and CenturyLink gateways, with step-by-step fixes for the most common issues.
Troubleshooting
What every Motorola modem light means — green, blue, and blinking — with fixes for the MB8600, MB8611, MB7621, and MG series gateways.
Buying guide
Fiber doesn't use a modem — an ONT replaces it. What each fiber ISP requires, when you can use your own router, and what to do with your old cable modem.
Setup
Renting a modem or gateway costs $10 to $25 a month on many internet plans. Here is how to check what you pay, choose a modem your provider approves, activate it in about 15 minutes, return the rental, and make sure the...
Setup
When the Xfinity app can't activate your modem, the cause is usually the outlet, the approved list, a previous account, or the app itself. Here is how to tell which one from the error message and the modem lights, and how to...
Troubleshooting
One Ethernet cable, from the modem to the router's WAN port, modem powered on first. Here is the full walkthrough for cable, DSL, fiber, and 5G, plus what to check when the router shows no internet.
Wi-Fi
Connect the router to the modem's Ethernet port, join the WiFi on the label, then set your own name and password in the My Spectrum app. Covers the setup password, whether your own router works, and fixes for a red router light...
Troubleshooting
A modem connects your home to your internet provider, and a router shares that connection with your devices. Here is how to tell them apart, what a gateway is, how fiber and 5G change the picture, and whether to buy a combo...
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