Most people keep a router until something visibly breaks, like dropped video calls or sluggish downloads. But slow Wi-Fi is only one warning sign. A router that has reached end-of-life status no longer receives security updates, which is a serious issue because the device sits between your internet connection and every other device on your network. Any vulnerability discovered after support ends will simply remain unpatched.
To check whether a router is outdated, look up its model number on the manufacturer's website or consult an end-of-life list. If the last firmware update was released years ago, that is a strong hint. You can also sign in to the router's administration page and see whether updates are available; if they are, install them promptly.
Performance problems can be diagnosed with a simple test. Connect a computer to the router with an Ethernet cable and run a speed test. If wired speeds are stable but Wi-Fi is much slower, the wireless connection is the bottleneck. Sometimes the issue is placement, such as positioning the router near thick walls, or coverage gaps that might call for a mesh system rather than a full replacement.
Age also matters. Newer Wi-Fi standards like Wi-Fi 6, 6E, and 7 offer significantly higher theoretical speeds than older Wi-Fi 4 or 5 gear, but both the router and the connected device must support the same standard to benefit. If your devices are newer than your router, an upgrade could unlock performance you are currently missing.