Overheating Router: What it Means and How to Prevent It

By SB •  Updated: 06/01/21 •  4 min read

Your internet router is the one device that acts as a gatekeeper for all the data going in and out of your home. Mis-configured firmware, too many connected devices, a dusty environment, direct sunlight, or a vent obstruction can lead to your router overheating, which can then lead to hardware damage and performance problems.

It is normal for electronic devices to feel warm to the touch while they are powered on and functioning, but sometimes prolonged heat exposure (sunlight) or an overworked device can overheat. And heat and electronics do not play well together.

Symptoms of an Overheating Router

Excess heat will reduce the life of the device. Dirty electricity or power surges can also damage your router. Damaged hardware can slow down your Internet connection and cause all sorts of unexpected errors.

Why Your Router Overheats and What to Do About It

If your router was not designed well or is working too hard due to routing lots of data to too many connected devices, the router may overheat.

Install a Heat Sink in Your Router

This requires taking the router cover off and installing a heat sink

Does Your Router Overheat and Your Internet Connection Slow Down?

Keep in mind that WiFi routers do not normally slow down your network unless they are defective in some way.

A WiFi router that has memory leaks should be returned; rebooting weekly only goes so far in preventing overheating issues, interference problems, and connection drops.

The Internet connection can change over time due to interference or problems at the ISP-level. These changes are not the fault of the router. Sometimes a simple reboot fixes everything: turn the router off, wait two minutes, then turn the router back on.

Prevent Overheating


I've been practicing OSINT and utilizing Linux as my daily operating system for over twenty years. The tools are always changing and so I'm always learning, but helping you understand the value of protecting your own data remains at the forefront of everything I do.