This guide shows you how to reset your TP-Link Archer MR400 v4 router to factory default settings. Resetting a router is different than rebooting a router. Rebooting a router is simply turning it off and back on again. A Router Reset completely erases the router and returns it to factory settings.
Warning: Make sure that you fully understand the following before resetting your router. A router reset will affect the following settings:
- The router's username and password are reset to factory defaults.
- All WiFi settings are reset, including network name and password.
- Your ISP username and password will be reset, and you may have to contact your ISP.
- Any firewall settings, parental controls, or port forwards that you have configured will be removed.
A router reset should be considered the last resort when you cannot log in to your router any other way. Make sure that you have tried to recover your router password using our Router Password Finder first.
Other TP-Link Archer MR400 v4 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.
- Make sure that your VPN provider has lots of exit nodes all around the world.
- 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.
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 Archer MR400 v4 1.3.0 0.9.1 v0001.0. We also have the following guides for the same router:
Recover Password in TP-Link Archer MR400 v4
Instead of resetting your router back to factory settings, you may want to try running our Router Password Finder first.
Our Router Password Finder can recover your lost or forgotten router password without doing a full router reset, which can save you lots of time.
Router Password Finder - Lost or Forgotten Router Password Recovery Tool
A router reset should be the last thing you try if you are unable to login.
Reset the TP-Link Archer MR400 v4
Don't forget to sign up for NordVPN's promo deal before it's gone.
You might notice that most of our site doesn't have ads on it. This is because we use partnerships with companies like NordVPN to keep the site running. Thank you for supporting us by using our referral links.
Most routers have a small button on either the back or the bottom. This is what a typical reset button looks like:
Even though yours may look slightly different, you need to look for a tiny button. 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. You should notice that the blinking pattern of the lights on the front of the router changes after a few seconds. You can hold the button down as long as you like, it will not hurt anything.
Don't forget, this step will totally reset your TP-Link Archer MR400 v4 router back to factory settings.
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 Archer MR400 v4
Now you need to log in using the factory default username and password. Our Archer MR400 v4 Login Guide has all of the information that you need.
Change Your Password
Do not forget to change your router's default password when you log back into it. It's a very bad idea to leave your router's password set to the factory default. If you need help coming up with a strong password, check out our Choosing a Strong Password guide.
Tip: Put your new password on a post-in note and stick it to the bottom of your router.
Other TP-Link Archer MR400 v4 Guides
This isn't our only TP-Link Archer MR400 v4 guide. We also have the following guides for this router.
This is the reset router guide for the TP-Link Archer MR400 v4 1.3.0 0.9.1 v0001.0. We also have the following guides for the same router: