Xfinity Is Removing DOCSIS 3.0 Modems: What It Means and What to Buy
Xfinity is steadily dropping DOCSIS 3.0 modems from its approved list, and unsupported models can stop activating. Le...
ModemGuides Blog
CommScope/Vantiva Modem Lights: What They Mean and How to Fix Common Issues
Learn what each CommScope and Vantiva modem light means and follow simple troubleshooting steps to fix offline, blink...
Xfinity Approved Modem List 2026: Compatible Modems for Comcast Internet
Xfinity has tightened its approved modem list for 2026, removing dozens of older DOCSIS 3.0 devices. Here is the curr...
How to Find Your Comcast Xfinity Modem Default Password (Admin and WiFi)
Learn how to find the default admin password and WiFi password on your Comcast Xfinity modem or gateway. This guide c...
Comcast Modem Flashing Green: How to Fix It (Step-by-Step Guide)
If your Comcast modem is flashing green, it usually means the device is trying to establish a connection but cannot c...
Xfinity Internet Keeps Dropping? Here's How to Fix It (2026 Guide)
If your Xfinity internet keeps dropping or disconnecting randomly, this guide walks you through every fix, from quick...
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Xfinity Modem/Router Blinking Orange Light: What It Means and How to Fix It
A blinking orange light on your Xfinity modem or xFi Gateway means the device is trying to connect to the internet and failing. This guide covers e...
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Comcast Xfinity Compatible Modems List by Speed Tier (2026)
Find the best Xfinity-approved modem for your speed tier. This guide covers every compatible modem from entry-level plans up to multi-gigabit, so y...
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How to Activate a Modem With Comcast Xfinity (Internet and Phone)
A complete guide to activating your own modem on Comcast Xfinity, including online self-activation, phone activation, and how to activate a phone m...
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Best Modem-Router Combos for Xfinity (2026) — Skip the Rental
Still renting your Xfinity gateway? Save $180+/year by owning your own modem-router combo. We compare the 5 best Xfinity-compatible options for 202...
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Xfinity xFi Gateway Keeps Going Offline? How to Fix It (2026)
If your Xfinity xFi Gateway keeps dropping offline, the problem is usually a loose cable, overheating, or a service outage. This guide walks you th...
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Xfinity xFi Gateway Not Working? How to Fix Common XB6, XB7, XB8 Issues
A complete troubleshooting guide for the most common Xfinity xFi Gateway issues, including Wi-Fi drops, slow speeds, bridge mode problems, and over...
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What Is DOCSIS 4.0? Speeds, Timeline, and 2026 Availability Guide
DOCSIS 4.0 is officially here, bringing symmetrical multi-gigabit speeds to cable internet for the first time. While fiber remains the gold standar...
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How to Cancel Comcast Xfinity Service (Step-by-Step Guide)
Canceling your Xfinity internet or TV doesn't have to be a headache. Whether you are moving, switching to fiber, or cutting the cord, use this comp...
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