Router Keeps Restarting — 7 Fixes
📋 Table of Contents
A router that keeps restarting disrupts everything from video calls to gaming. It can be caused by overheating, firmware bugs, ISP line issues, or a failing power supply. Here's how to diagnose and fix it.
Fix 1: Check the Router Temperature
Routers overheat when placed in enclosed spaces or stacked on other devices. Move your router to an open, well-ventilated area. Check if vents are blocked. If it's hot to the touch, that's your problem.
Fix 2: Check the Power Adapter
A failing power adapter causes voltage drops that trigger automatic restarts. Try a different power adapter with the same voltage/amperage rating. This is a common cause on routers 3+ years old.
Fix 3: Update Router Firmware
A bug in older firmware can cause a restart loop. Log into your router admin panel (typically 192.168.1.1 or 192.168.0.1), go to Administration or Advanced, and check for firmware updates.
Fix 4: Check for ISP Line Issues
If the router restarts only at specific times or when making connections, the issue may be on the ISP side — line noise, signal drops, or a faulty modem. Swap the modem first.
Fix 5: Factory Reset the Router
Log in and navigate to the factory reset option, or hold the reset button on the back for 10 seconds. Reconfigure from scratch. This clears corrupt settings that cause crash loops.
Fix 6: Reduce Connected Devices
Too many connected devices can overload older routers. Check how many devices are connected via your admin panel. If it's over 20, consider a router upgrade with higher capacity.
Fix 7: Replace the Router
Consumer routers have a lifespan of 3-5 years. If your router is older and restarting frequently despite all fixes, it's time for a replacement. Modern routers ($50-100) are far more stable.
Conclusion
Router restarts are most commonly caused by overheating or a failing power supply. Check those two things first. If the router is over 4 years old and acting unstable, replacing it is usually the most cost-effective solution.