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
A plain-English manual for the TP-Link RE315 AC1200 extender. Set it up with Tether, a browser, or WPS, log in at tplinkrepeater.net, change the name and password, use Access Point mode, read the lights, reset it, and fix the common problems.
Review
The best privacy-first security cameras under $100 in 2026, with local storage and no monthly fees. Indoor and outdoor picks that keep your footage at home.
A complete plain-language manual for the Arris CM8200A DOCSIS 3.1 cable modem, covering setup, ISP activation, admin access at 192.168.100.1, WiFi and bridge mode guidance, LED status lights, factory reset, and fixes for the most common issues.
Review
Your ISP router's firewall is mostly an on/off checkbox with no logs, no alerts, and no real segmentation. Here are the best home lab and home server routers for 2026, from beginner-friendly Firewalla and UniFi to OPNsense boxes and the dual-WAN Peplink...
A plain-English manual for the Arris SURFboard S33 cable modem. Covers setup, provider activation, the 192.168.100.1 login, what every light color means, the S33v2 and S33v3 revisions, resets, and fixes for the problems S33 owners run into most.
The complete owner's manual and user guide for the Arris SURFboard SB8200 DOCSIS 3.1 cable modem: specs and versions (v2, v3, RB), provider compatibility, installation, activation, the 192.168.100.1 login and the serial-number default password, what each light means, restart and factory reset,...
TP-Link just unveiled the Archer 8, the first consumer Wi-Fi 8 router. Here is a plain-English rundown of what Wi-Fi 8 changes, when it arrives, and whether you should wait or upgrade to Wi-Fi 7 now.
Review
Looking for fast, affordable home WiFi? These are the best WiFi 6 routers under $100 in 2026, including refurbished value picks that deliver strong speeds and coverage for a fraction of the price.
Review
A plain-English guide to Wi-Fi extenders vs mesh systems in 2026. Learn which one actually fixes dead zones, what each costs, and the best products for small apartments to large multi-story homes.
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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.
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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
Review
Xfinity is steadily dropping DOCSIS 3.0 modems from its approved list, and unsupported models can stop activating. Learn how to check your modem and pick the right DOCSIS 3.1 replacement by speed tier.
Review
A plain-English guide to Mediacom's approved modems in 2026, matched to each speed tier, plus how to buy your own modem and stop paying rental fees.
Review
A plain-English guide to choosing an Optimum compatible modem for your plan. Compare the best DOCSIS 3.1 modems for Optimum 300, 500, and 1 Gig, and learn the rules for Optimum Voice and Fiber.
Troubleshooting
Where you place your modem and router has a bigger impact on Wi-Fi speed than most people realize. Here is how to set them up for the strongest, most reliable signal.
Troubleshooting
A modem that keeps restarting usually points to power issues, overheating, cable problems, or a failing device. Here is how to diagnose and fix it.
Review
The full Cox approved modem list for 2026. See every Cox-certified DOCSIS 3.1 modem and gateway, which one fits your plan, and how to activate it.
A clear, easy guide to every LED on the Hitron CODA-4582 and CODA-4680 modems. Learn what each color and flashing pattern means and follow simple troubleshooting steps to get back online fast.
Review
Confused by the difference between Arris SURFboard "SB" and "SBG" modems? This guide breaks down what the naming means, which line offers better value, which delivers stronger performance, and how to pick the right one for your internet plan.
Troubleshooting
A complete guide to what each light color means on the Technicolor CGM4140 and CGM4981 modems, with simple troubleshooting steps for red, orange, green, and blinking white lights.
Troubleshooting
Learn what each CommScope and Vantiva modem light means and follow simple troubleshooting steps to fix offline, blinking, or red light issues.
Troubleshooting
A clear, step-by-step guide to understanding Ubee modem lights and fixing common issues like blinking downstream, missing online lights, and connection drops.
Review
The full 2026 Spectrum approved modem list, organized by service tier. See every cable modem authorized for Charter Spectrum Internet, with best picks for the Advantage, Premier, and Gig plans, plus what to avoid.
Review
Complete Arris Modem Lineup Compared: SB6190, SB8200, S33, G34, G36 & SBG7600AC2 Arris (now part of CommScope) makes some of the most widely used cable modems in the United States. With over 260 million SURFboard modems sold, you have probably owned or...
DOCSIS 4.0
No DOCSIS 4.0 modem is sold at retail as of September 2026. Every one in use is an ISP gateway like Comcast's XB10 or XD4. Here is where the rollout stands, what "DOCSIS 4.0 ready" marketing means, and why a DOCSIS 3.1...
DOCSIS 3.1
DOCSIS 4.0 promises symmetrical multi-gig speeds, but DOCSIS 3.1 still powers most cable internet today. Here is the real difference, in plain English.