ModemGuides BlogGuides for people who would rather own their hardware than rent it.
Home Networking · Topic
Every Home Networking article tagged Internet Help, newest first.
31 articles
Troubleshooting
Changing your WiFi password takes about two minutes once you know where the setting lives. Here is where to find it on every major router brand and ISP gateway, what to name the new password, and how to get every device back...
Find the DNS setting on your exact router, with admin addresses and menu paths for Netgear, Orbi, TP-Link, Deco, ASUS, Linksys, eero, and Google Nest Wifi. Includes the workarounds for Xfinity, Spectrum, AT&T, and Verizon gateways that hide or lock the setting.
Gaming
Double NAT you can fix tonight. CGNAT you cannot fix in settings — your ISP holds the address. Here is how to tell them apart and what actually works.
A complete guide to the best DNS servers for faster browsing and better privacy. Includes step-by-step instructions to change your DNS settings on any device or router, plus a comparison of Cloudflare, Google, Quad9, and OpenDNS.
Not sure what your speed test numbers actually mean? This guide breaks down every metric on your results page and walks you through simple fixes to get the speeds you are paying for.
Troubleshooting
A step-by-step guide to diagnosing and fixing slow WiFi at home. Covers router placement, firmware updates, channel congestion, bandwidth hogs, and more.
Troubleshooting
Restarting your modem is the fastest way to fix most internet problems. This guide walks you through the correct steps, explains when a restart helps, and covers what to do if it does not work.
Troubleshooting
A blinking orange light on your Xfinity modem means it is trying to connect and failing. Here is what causes it and how to fix it fast at home.
Troubleshooting
A complete troubleshooting guide for random internet disconnections. Learn how to diagnose whether your modem, router, ISP, or WiFi interference is causing drops, and how to fix each one.
From the ModemGuides store
Your ISP bills you every month for hardware you never own. Every unit in our store is professionally refurbished, hand tested in the US, and backed by our 90-day warranty.
Shop by provider
XfinitySpectrumCoxCenturyLinkBrightspeedVerizon FiosOptimumMediacom
Shop refurbished gearBest sellersSee all
GreenWave C4000LG CenturyLink WiFi 6 Single Line xDSL Modem RouterCenturyLink, Brightspeed
Verizon Fios G3100 Router | Tri-Band WiFi 6, MoCA 2.5Verizon Fios
Actiontec C3000A CenturyLink DSL Modem Router | Bonded VDSL2CenturyLink, Brightspeed
Refurbished ARRIS DG3450 Modem Router Combo, Spectrum ApprovedSpectrum, TDS
Troubleshooting
Slow upload speeds affect Zoom calls, cloud backups, gaming, and video uploads. This guide walks you through the most common causes and fixes, from quick settings changes to modem upgrades that can unlock 5 to 10x faster uploads.
Setup
Learn how to install, activate, and configure the Verizon Fios Home Router G3100. This guide covers WiFi password and SSID changes, bridge mode setup, and fixes for the most common G3100 problems.
Setup
A complete setup and troubleshooting guide for the Actiontec C3000A modem on CenturyLink. Covers activation, WiFi configuration, bridge mode, and fixes for the most common problems.
Setup
Complete guide to activating your Actiontec C3000Z with CenturyLink, changing your WiFi password, and troubleshooting the most common issues including no internet, slow speeds, and WiFi drops.
Setup
A complete guide to activating your modem with TDS Telecom, covering DSL, cable, and fiber internet connections, plus home phone service activation.
Setup
A complete guide to activating your Brightspeed modem for internet and home phone service, with troubleshooting steps for common activation problems.
Troubleshooting
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...
A step-by-step guide to canceling Verizon Fios internet service, returning equipment, avoiding surprise charges, and understanding your final bill.
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
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.
Troubleshooting
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.
Troubleshooting
A complete troubleshooting guide covering the most common TP-Link Archer and Deco mesh problems, including internet connection failures, frequent reboots, slow speeds, firmware issues, and mesh node disconnects.
Troubleshooting
If your internet keeps dropping out, the problem is usually your modem, your router, or the cabling between them. This guide walks you through how to diagnose the issue, check your modem signal levels, fix Wi-Fi interference, and troubleshoot the most common...
DOCSIS 4.0
DOCSIS 4.0 is officially here, bringing symmetrical multi-gigabit speeds to cable internet for the first time. While fiber remains the gold standard, this massive upgrade to existing coaxial networks supports up to 10 Gbps down and 6 Gbps up. From Comcast’s latest...
Quick answer: 2.4 GHz → use 1, 6, or 11 at 20 MHz. 5 GHz → start on 36–48 or 149–161 at 80 MHz (drop to 40 MHz if crowded). DFS (52–144) is usually cleaner but can briefly disconnect if radar is...