How to Tell If Your Router Needs to Be Replaced

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title: "How to Tell If Your Router Needs to Be Replaced" description: "Internet keeps dropping and restarts aren't fixing it? Your router might just be old. Here are the signs it's time to replace it." date: "2026-08-26" keywords: ["when to replace router", "router too old", "Wi-Fi 6 upgrade", "router not working", "slow Wi-Fi fix", "how long do routers last", "dead zones Wi-Fi", "router running hot", "upgrade home router", "home network performance"]

Your internet keeps dropping. Devices disconnect at random. Netflix buffers even when nothing else is running. You've restarted the router a dozen times and nothing sticks.

Before you call your ISP or upgrade your plan, there's something worth checking first: your router might just be old.

Here's how to tell.

Your Router Is More Than 4-5 Years Old

Most routers were not built for how we use the internet now. A router from 2019 was designed for a household with a few phones, a laptop, and maybe a smart TV. It was not designed for 20+ devices, 4K streaming on three screens simultaneously, smart home gear, and video calls.

Router hardware ages. The processor gets overwhelmed, the radio chips degrade, and software updates stop. Manufacturers typically stop supporting routers after 3 to 5 years.

Check the model number on the bottom of your router and search when it was released. If it's pre-2020, it's worth serious consideration.

You're Still on Wi-Fi 5 (802.11ac) or Older

Wi-Fi 6 (802.11ax) launched in 2019. If your router predates that, you're leaving performance on the table, especially in homes with lots of devices.

Wi-Fi 6 is better at handling many devices at once. It uses a technology called OFDMA, which lets the router talk to multiple devices simultaneously instead of taking turns. In a busy home, that's the difference between smooth and choppy.

Wi-Fi 6E and Wi-Fi 7 exist now too, but Wi-Fi 6 is still a solid upgrade for most people.

Dead Zones That Didn't Used to Be There

If a spot in your home used to have signal and now doesn't, the router's radio strength may be degrading. This happens. The antennas and radio chips inside routers wear down over time, especially if the unit runs hot or has been on without interruption for years.

A new router, or a mesh system for larger homes, will solve this where a restart never will.

The Router Runs Hot and Needs Frequent Restarts

All routers generate heat. But if yours is hot enough to be uncomfortable to touch, that's a problem. Sustained heat wears out internal components faster and causes the router to throttle performance to protect itself.

If you're restarting your router once a week or more just to get things working again, that's not normal. A healthy router should run for months without needing a restart.

You're Paying for High Speeds but Not Getting Them

Run a speed test while connected directly to your router via ethernet cable (not Wi-Fi). If that number is close to what your ISP promises, your router is probably fine. If it's slow on ethernet too, call your ISP.

But if ethernet is fast and Wi-Fi is slow, your router is the bottleneck. It can't broadcast the speeds your internet connection is capable of delivering.

This is one of the most common problems we see at SageTech. People pay for 500 Mbps or 1 Gig service and wonder why their Wi-Fi feels sluggish. Sometimes the router is just too old to keep up.

What to Do About It

You have a few options.

Replace with a standalone router. Good for smaller homes or apartments. Something like the TP-Link Archer AX55 runs around $90 and is a solid Wi-Fi 6 upgrade.

Switch to a mesh system. Better for homes over 1,500 square feet or multi-story layouts. Google Nest Wi-Fi Pro and Eero 6 are both reliable options in the $150 to $250 range.

Or call someone to diagnose first. If you're not sure where the problem is, it's worth having someone walk through your setup before you buy anything. Sometimes it's the router. Sometimes it's placement, interference, or your ISP's equipment.

SageTech can come to your home, test your current setup, and tell you exactly what's causing the problem before you spend money on hardware you might not need. Book a session at sagetechapp.com.

A router that was great in 2018 is not a good router in 2026. The technology moved, the devices multiplied, and the demands on your home network got heavier. If yours is struggling, it's probably not lying.