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Reset the Tenda D840R

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

If you need to reset your Tenda D840R router back to factory settings, then this article shows you how. This is a much bigger deal than a router reboot. Turning a router off and back on again causes a reboot. A Router Reset completely erases the router and returns it to factory settings.

Warning: Since this erases everything you have done to the router, there are some things you need to consider first. A router reset will affect the following settings:

  • The router's login and password are reset.
  • Your WiFi login, password, and network name are reset.
  • Any ISP settings saved in your router will be removed. You may have to contact your ISP.
  • Any port forwards, firewall settings, or parental controls 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. 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 Tenda D840R Guides

This is the reset router guide for the Tenda D840R. We also have the following guides for the same router:

Recover Password in Tenda D840R

If the only reason that you are resetting your router is because you forgot your router password, then you may want to try running our Router Password Finder instead of resetting your router.

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

Only after you have tried to recover your missing router username and password should you perform a full router reset.

Reset the Tenda D840R

There is usually a small reset button located on either the back or the bottom of a router. Look for something that looks like this:

Router Reset Button

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.

Watch the front panel lights while you hold the reset button down for at least 10 seconds. The lights on the front of the router should do something different when the reset happens. You cannot hold the button too long, and it will not hurt the router to hold the reset button down for longer than 10 seconds.

Just don't forget that this will totally reset your Tenda D840R router.

Only take this last step of fully resetting your router after you have exhausted all other troubleshooting options, such as running our Router Password Finder software, which can recover a lost router password for you.

Login to the Tenda D840R

After you are finished resetting your router, you need to login in using the original factory username and password. We have a D840R Login Guide with all this information ready for you.

Change Your Password

You need to change your router's default password after you log in for the first time. Since factory passwords are well known, it's a huge security risk to leave your router set to the 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 post-it note and stick it to the bottom of your router.

Other Tenda D840R Guides

We have collected a lot of information about the Tenda D840R router. You can find some of our additional content here.

This is the reset router guide for the Tenda D840R. We also have the following guides for the same router: