Setup
How to Activate a Cable Modem With Sparklight Internet (Phone Modem Too)
Learn how to activate your own cable modem or phone modem on Sparklight internet service with this easy step-by-step walkthrough.
ModemGuides BlogGuides for people who would rather own their hardware than rent it.
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Home Networking
Modem and router guides, Wi-Fi fixes, setup walkthroughs, and the buy-versus-rent math for every major ISP.
236 articles
Latest from Home Networking
Troubleshooting
How to Activate a Spectrum Modem: Internet and Phone (eMTA) Guide
Connect the modem, wait for the solid Online light, then activate at spectrum.net/selfinstall or in the My Spectrum app. Covers customer-owned modems and MAC registration, the Spectrum Voice eMTA, and the fixes for "Network Access Denied" and a modem that never comes...
Troubleshooting
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 modem for Xfinity Voice service.
Troubleshooting
How to Cancel Verizon Fios Internet Service (Step-by-Step Guide)
A step-by-step guide to canceling Verizon Fios internet service, returning equipment, avoiding surprise charges, and understanding your final bill.
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.
Troubleshooting
Best WiFi Channel Scanning Apps and How to Pick the Right Channel
Slow WiFi is often caused by channel congestion from nearby networks. A free channel scanning app can show you which channels are crowded and help you pick a better one. Here is how to get started.
Review
Wi-Fi 7 Is Here: Do You Actually Need to Upgrade Your Router?
Wi-Fi 7 routers are finally mainstream and prices are dropping. Here is what the new wireless standard actually does, which devices can take advantage of it, and whether upgrading makes sense for your home network right now.
Review
The Ultimate Gamer's Guide to Reducing Lag: Top Modems and Routers for Competitive Play
High ping and lag spikes can cost you matches. This guide explains what actually causes gaming latency and recommends the best modems and routers to fix it.
Review
Mesh Wi-Fi vs. Traditional Routers: How to Eliminate Dead Zones in 2026
Not sure whether you need a mesh Wi-Fi system or a single router? This guide breaks down the differences and helps you choose the right setup based on your home size, layout, and internet speed.
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Hardware VPN Routers: How to Encrypt Your Entire Home Network at the Gateway
A hardware VPN router encrypts every device on your network at the gateway level. This guide explains how it works, what to look for, and which routers handle VPN encryption without killing your speeds.
Troubleshooting
How to Set Up VLANs for Smart Home Security | Isolate IoT Devices Step by Step
Smart home devices are convenient but often insecure. This guide walks you through setting up a VLAN to keep IoT gadgets like cameras, smart speakers, and appliances on a separate network, away from your personal data.
The True Cost of ISP Gateways: Hardware Teardown and Comparison
ISP gateways cost $7 to $25 per month to rent, but the hardware inside rarely justifies the price. Here is what you are actually paying for and how to stop.
Gaming
Best 2.5G Ethernet Switches for Home Networks (2026)
A 2.5G ethernet switch is one of the easiest and most affordable upgrades you can make to your home network. Here are the 8 best options for 2026.
MoCA Adapters Explained: How to Get Wired Speeds Without Running Ethernet
MoCA adapters use the coax cable already in your walls to deliver fast, reliable wired internet to any room. No drilling, no new wiring. Here is how to set one up in minutes.
Buying guide
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 2026 — from the budget-friendly ARRIS G34 to the Wi-Fi 7 ARRIS G54 — with specs, pricing, and setup instructions.
DOCSIS 3.1
DOCSIS 3.1 vs DOCSIS 4.0: Should You Upgrade in 2026?
DOCSIS 4.0 promises symmetrical multi-gigabit speeds over existing cable lines, but retail modems are not available yet. Here is what you need to know before deciding whether to upgrade from DOCSIS 3.1 in 2026.
Troubleshooting
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 through the most common fixes step by step.
Troubleshooting
Why You Should Flash Your Router With Open-Source Firmware for Privacy
Your router's stock firmware may be collecting your data and running unpatched software. Compare OpenWrt, FreshTomato, and pfSense to find the best open-source firmware for your home or small business network.
Troubleshooting
How to Install pfSense on Your Home Network (Complete Beginner's Guide)
pfSense offers enterprise-grade firewall protection and network control for your home, but it cannot be installed on a standard wireless router. Read our complete guide to find out what dedicated x86 hardware you need, how it changes your network layout, and step-by-step...
Troubleshooting
How to Install OpenWrt on Your Wireless Router (Step-by-Step Guide)
Upgrade your home network with OpenWrt. Follow our beginner-friendly guide to flashing custom router firmware for better security and network-wide ad blocking.
Troubleshooting
How to Install FreshTomato Router Firmware (2026 Guide)
The original Tomato router firmware is discontinued, but FreshTomato keeps the project alive. Find out if your Broadcom-based router is compatible and learn how to upgrade your home network with our comprehensive step-by-step installation guide.
Troubleshooting
How to Install DD-WRT on Your Wireless Router (Step-by-Step Guide)
DD-WRT replaces your router's factory firmware with a powerful open-source alternative. This guide walks you through every step, from checking compatibility to completing your first setup.
FCC Bans All New Foreign-Made Routers: What US Home Users Need to Know
The FCC added all foreign-produced consumer routers to its Covered List on March 23, 2026, blocking new models from entering the US market. Here's what users need to know about the ban, which brands are impacted, & what happens next.
Troubleshooting
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 overheating on the XB6, XB7, and XB8 models.