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Reset the Trendnet TEW-P21G

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Setup Router Staff
Last Updated: | Reading Time: 3 minutes

In this article, you will learn how to reset your Trendnet TEW-P21G back to factory settings. Resetting a router is different than rebooting a router. Rebooting a router is simply turning it off and back on again. This is very different from a reset, which erases a router completely and returns it to factory default settings.

Warning: Before you continue, there are a few things you need to know. A router reset will affect the following settings:

  • The router's login and password are reset.
  • All WiFi settings are reset, including network name and password.
  • If your router has any ISP settings they will be removed, and you will have to contact your ISP.
  • Any firewall settings, parental controls, and port forwards that you have configured will be removed.

A router reset is the last step you should take in recovering your router's password. You should be sure that you have tried to at least recover your router password using our Router Password Finder before resorting to a router reset.

Other Trendnet TEW-P21G Guides

This is the reset router guide for the Trendnet TEW-P21G. We also have the following guides for the same router:

Recover Password in Trendnet TEW-P21G

Before you resort to doing a full router reset, you may want to try running our Router Password Finder first.

Router Password Finder can save you a ton of time by recovering your lost or forgotten router password instead of doing a full router reset.

Router Password Finder - Recover Lost or Forgotten Router Passwords

A router reset should be the last thing you try if you are unable to login.

Reset the Trendnet TEW-P21G

Usually there is a reset button located on the back or bottom of a router. This is what a typical reset button looks like:

Router Reset Button

Yours may look slightly different, but they are usually tiny. Sometimes the reset button is under a pinhole on the back of the router, and you need a paper clip to push it.

Hold the reset button down for 10 seconds and watch the lights. The blinking pattern of the lights on the front of the router should change when the reset is complete. You can hold the button down as long as you like, it will not hurt anything.

Remember, this will erase everything you have previously done to this Trendnet TEW-P21G router.

Be sure to only reset your router if you have tried everything else, such as running our Router Password Finder software, which can find your lost or forgotten router password for you.

Login to the Trendnet TEW-P21G

Now you need to log in using the factory default username and password. We have a TEW-P21G Login Guide with all this information ready for you.

Change Your Password

After logging in to your router for the first time, you need to change your router's password. Leaving a router password set to default is a very serious security risk. If you need help coming up with a strong password, check out our Choosing a Strong Password guide.

Tip: A great place to write your new password down is on a piece of paper taped to the bottom of your router.

Other Trendnet TEW-P21G Guides

We have collected a lot of information about the Trendnet TEW-P21G router. You can find some of our additional content here.

This is the reset router guide for the Trendnet TEW-P21G. We also have the following guides for the same router: