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Networking

Wireless Router Running Hot? Cool It Down the Easy Way

by Adam Lovinus December 9, 2016
by Adam Lovinus December 9, 2016 3 comments 44254 views

If your router is hot to the touch, it could be a sign that a firmware update is needed. If that doesn’t do the trick, you might need to add a cooling element—especially if you’re working it hard.

Generally, you want router temperature below 90 degrees Fahrenheit.

Firewall rules and running a P2P client push a router CPU and generates heat. It’s just like a PC, except most router builds—especially older models—aren’t designed with cooling in mind. Heat is bad. It affects performance in the short term by slowing connection and dropping signal. In the long term, it reduces the life of your device.

Easy Fix

DEEPCOOL N180 FS Laptop Cooling PadCooling a router is simple—get some air passing near it. Point a desk fan at it to bring temps down in a pinch.

A more permanent solution is placing a small laptop cooling pad underneath. Essentially a horizontally aligned fan encased in a thin chassis, it extracts hot air from underneath the router and blows it sideways. It is powered over USB, so if your router has an open port it is easy to set and forget.

Ugly fix

If you want to blow air and time on a hot router, mount a PC case fan to the chassis with super glue and hand-wire it to a 15 V or 12 V AC adapter. You will need a soldering iron to attach inputs to the copper wiring. You might short circuit the router or shock yourself, but here’s the basic idea if you want to tinker with it:

If you want to get into this mess here’s the instructibles guide, have fun.

 

Check price - Xiaomi Mini Smart Home Temperature Sensor

Monitor router temperature the easy way

Yes, the Internet of Things saves the day! A small smart thermometer will do the trick. If configuring heat monitoring using a smart phone application is more your speed, this is the route that I recommend. The Xiaomi Mini Smart Home Temperature Sensor is a small battery-powered unit that sticks on the router chassis and delivers accuracy to 0.3 degrees. Learn more

The advanced way

Network administrators keep an eye on router temperature using remote monitoring (RMON) configurations in Simple Network Management Protocol (SNMP). Routers can be monitored for heat with a remote PC. You can wire in your own temperature sensor, and routers like the Cisco 2800 series have heat sensors built in already. You still need to code in temperature tracking using the command line interface; do this yourself or find something on GitHub. A good open-source router does this as well for a lesser cost. Flash the firmware and you’ll use SSH or Telnet protocol to access the CLI, input coding with your WRT language of choice, DD-WRT, OpenWRT, Tomato, and the like.

See new wireless routers at NeweggBusiness

Adam Lovinus

Adam Lovinus

A tech writer and Raspberry Pi enthusiast from Orange County, California.

More Posts - Website - Twitter - LinkedIn - Google Plus

Summary
Wireless Router Running Hot? Cool It Down the Easy Way
Article Name
Wireless Router Running Hot? Cool It Down the Easy Way
Description
If your router is hot to the touch, it could be a sign that a firmware update is needed. If that doesn’t do the trick, you might need to add a cooling element—especially if you’re working it hard. Here's how.
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Adam Lovinus
HardBoiled | NeweggBusiness
NeweggBusiness - HardBoiled
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Adam Lovinus
Adam Lovinus

A tech writer and Raspberry Pi enthusiast from Orange County, California.

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3 comments

Avatar
Adam January 19, 2018 - 11:18 am

sounds good

Reply
Avatar
Ooga booga July 13, 2018 - 1:03 pm

My wifi router is running 6 wifi networks

Reply
Adam Lovinus
Adam Lovinus July 13, 2018 - 1:10 pm

How are the temperatures?

Reply

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