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Reset the TP-Link TL-MR3420

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

This guide shows you how to reset your TP-Link TL-MR3420 router. Resetting a router is different than rebooting a router. A reboot happens every time a router loses power. Resetting a router erases all settings from it and returns it to factory defaults.

Warning: Make sure that you fully understand the following before resetting your router. The following settings will be changed in your router:

  • The router's username and password are reset to factory defaults.
  • Your WiFi name and password are reset.
  • All ISP settings will reset to default, and you may have to contact your ISP.
  • Any parental controls, firewall settings, or port forwards will be removed.

A router reset should be considered the last resort when you cannot log in to your router any other way. Before you reset your router, you may want to try recovering your router password with our Router Password Finder.

Other TP-Link TL-MR3420 Guides

Use a VPN Instead

Have you considered using a VPN instead of forwarding a port? For most users, a VPN is a much simpler and more secure choice than forwarding a port.

We use and recommend NordVPN because not only is it the fastest VPN, it includes a new feature called Meshnet that makes forwarding a port no longer necessary for most applications. With NordVPN Meshnet, you can connect to your devices from anywhere in the world, completely secure, over a highly encrypted VPN tunnel.

When shopping for a VPN, make sure that they meet the following criteria:

  • Your VPN provider should have a no-logs policy. This means that they do not keep any logs of any kind.
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  • Check that your VPN will not affect your speed.
  • Verify that your VPN provider uses WireGuard as the underlying protocol.
  • Many people prefer a VPN provider that is not based in the United States.

This is the list of requirements that we used when we were shopping around for a VPN provider. There are lots of free, shady VPN providers out there that we looked at and dismissed.

Based in Panama, using diskless servers, and with over 6,100 servers in 61 countries, we can safely say that NordVPN satisfies all of these requirements.

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Once you've set up your NordVPN account on multiple computers and enabled Meshnet, you can seamlessly access all of your devices as if they were on the same network. You don't even have to log in to your router. It's very simple.

Every time you click on one of our affiliate links, such as NordVPN, we get a little kickback for introducing you to the service. Think of us as your VPN wingman.

This is the reset router guide for the TP-Link TL-MR3420 3.12.8. We also have the following guides for the same router:

Recover Password in TP-Link TL-MR3420

If you are resetting your router because you forgot your router password, then you should 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 - Automatically Recover Lost or Forgotten Router Passwords

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

Reset the TP-Link TL-MR3420

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On most routers you can find a small button on the back or the bottom labeled reset. What you are looking for is something that looks like this:

Router Reset Button

Yours may look slightly different, but they are usually tiny. If you find a pinhole on the back of the router then that may be the reset button. You will need a paper clip to push it.

Hold the reset button down for about 10 seconds while watching the lights on the front of your router. Notice how the lights on the front of the router are blinking. When the lights do something different, the router is reset. Keep holding the button as long as you want, it will not hurt anything to hold it down too long.

Keep in mind that this will completely reset your TP-Link TL-MR3420 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 TP-Link TL-MR3420

Now that you have finished resetting the router, you need to login to the router interface using the default username and password. Just follow our TL-MR3420 Login Guide to find all of the information that you need.

Change Your Password

After logging in to your router for the first time, you need to change your router's password. It's a very bad idea to leave your router's password set to the factory default. You can follow our Choosing a Strong Password guide to help you pick a solid password for your router.

Tip: Write your new password down on a note and tape it to the bottom of your router for future reference.

Other TP-Link TL-MR3420 Guides

This isn't our only TP-Link TL-MR3420 guide. We also have the following guides for this router.

This is the reset router guide for the TP-Link TL-MR3420 3.12.8. We also have the following guides for the same router: