ModemGuides BlogGuides for people who would rather own their hardware than rent it.
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Modem and router guides, Wi-Fi fixes, setup walkthroughs, and the buy-versus-rent math for every major ISP.
236 articles
Review
The pressure to give your child a smartphone is high, but the "Wait Until 8th" movement is growing. Learn why bringing back the landline is the smart parenting move of 2026 to protect developing brains. Plus, get step-by-step instructions on how to...
Review
The Arris S33 and SB8200 share the same chipset and DOCSIS 3.1 performance. The real difference is the S33's 2.5 Gbps port, which only matters on plans above 1 Gbps.
Do you have gigabit internet but still lag in games? The problem usually isn't your speed—it's bufferbloat. In this guide, we explain why your router might be choking your connection and how to use QoS and SQM to get the smooth gaming...
Review
Stuck at the "Netgear Wall of Numbers"? We break down the CM1000, CM1100, and CM1200 in plain English. Learn why the 4-port model isn't a router and which modem actually fits your home setup.
Review
Is your Starlink router struggling to cover your whole house? You aren't alone. In this guide, we break down exactly how to bypass the default Starlink router, whether you need the Gen 2 Ethernet Adapter, and the top 4 mesh systems—including the...
Wi-Fi
Your router broadcasts on two or three WiFi bands, and picking the right one for each device makes a bigger difference than most upgrades. Here is what 2.4 GHz, 5 GHz, and 6 GHz each do best, which band to use for...
Review
Stop paying monthly rental fees in 2026. Compare the best Sparklight, Mediacom, and Breezeline compatible modems for every internet plan, organized by speed tier with top DOCSIS 3.1 picks for entry, mid-range, gigabit, and multi-gig service.
Troubleshooting
A plain-English guide to Arris SURFboard modem lights. See what solid green, solid blue, amber, and blinking mean on the SB6190, SB8200, S33, and G36, and how to fix the most common problems.
Review
Spectrum stops supporting DOCSIS 3.0 modems on October 28, 2026. Here is how to tell if yours is affected, the best DOCSIS 3.1 replacement for each Spectrum plan, and which models to avoid.
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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
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...
Troubleshooting
Every DOCSIS version from 1.0 to 4.0 in one comparison table, with release dates, maximum speeds, what each version changed, how to find the version your modem uses, and why DOCSIS 3.1 is the one to buy now that Xfinity and Spectrum...
Setup
Xfinity keeps two device lists, and the second one decides whether you get mid-split upload speeds. Here are the modems that qualify at each plan level, why the Arris S33 is not one of them, and how refurbished units activate on the...
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...
The ARRIS DG3450 replaces a rented Spectrum gateway with one box you own. Here is what it does, which providers support it, and what a renewed unit costs.
Public WiFi is safer than it was a decade ago because nearly every site is encrypted, but fake networks, spoofed login pages, and hotel device limits are still a daily problem for travelers. Here is what can go wrong, what to check...
Power cuts, provider outages, and cloud outages each need a different fix. Here is how to keep home internet running with a UPS battery backup, a second connection from your provider, a cellular carrier, or Starlink, and a router that fails over...
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...
Review
A plain-English guide to the best WiFi extenders of 2026, with easy picks for budgets, large homes, and single rooms, plus setup and placement tips.
Mesh Wi-Fi
Thinking about upgrading from Wi-Fi 6E? This guide explains the real-world benefits of Wi-Fi 7, whether to go mesh or single router, and which routers are best for your internet provider.
Setup
Step-by-step Verizon Fios router setup for the Verizon Router (CR1000A), Fios Router (G3100), and Quantum Gateway (G1100): connecting to the ONT, reading the status light, activating service, changing your WiFi name and password, and fixing the most common setup problems, checked against...
Wi-Fi
When one phone will not connect to WiFi and every other device works, the cause is a setting on the phone or a router setting aimed at that phone. Match what your iPhone or Android shows to its cause, then fix it.
Troubleshooting
Your iPhone can hand a WiFi password to another Apple device with one tap, or show a QR code that any phone can scan. Here is how both methods work, where to find the saved password, and what to do when the...
Pair a WiFi extender with your router using WPS or the app, place it where it can do its job, and fix the common "connected but no internet" problems.
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.