Buying guide
Do You Need a Modem for Fiber Internet? No — Here's What Replaces It
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.
ModemGuides BlogGuides for people who would rather own their hardware than rent it.
Home Networking · Topic
AT&T Fiber
Every Home Networking article tagged AT&T Fiber, newest first.
3 articles
Latest from AT&T Fiber
Setup
How to Activate a Modem With AT&T (DSL, Fiber, and Phone Service)
A plain-language guide to activating your AT&T gateway for Fiber and DSL internet service, including how to set up AT&T digital phone service through your gateway.
Troubleshooting
How to Cancel AT&T Fios Service (Step-by-Step Guide for 2026)
AT&T Fiber has no contracts and no early termination fees. Here is how to cancel your service by phone, return your equipment, and avoid surprise charges on your final bill.
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