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Reset the Sagemcom Fast 3890v3

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Setup Router Staff
Last Updated: | Reading Time: 5 minutes

In this article, you will learn how to reset your Sagemcom Fast 3890v3 back to factory settings. This is a much bigger deal than a router reboot. A reboot happens every time a router loses power. However, when you reset a router you, return it back to its factory default settings.

Warning: Since this erases everything you have done to the router, there are some things you need to consider first. The following settings will be changed in your router:

  • The router's username and password are reset to factory defaults.
  • All WiFi information such as network name, password, and authentication method are erased.
  • Any ISP settings saved in your router will be removed. You may have to contact your ISP.
  • Any firewall settings, parental controls, and port forwards that you have configured will be removed.

Since a router reset is such a drastic step, it should only be done as a last resort when you cannot recover your router's password using any other methods. Before you reset your router, you may want to try recovering your router password with our Router Password Finder.

Other Sagemcom Fast 3890v3 Guides

This is the reset router guide for the Sagemcom Fast 3890v3 sw05.76.6.3c. We also have the following guides for the same router:

Recover Password in Sagemcom Fast 3890v3

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 - Lost or Forgotten Router Password Recovery Tool

Do not do a full router reset until after you have tried every other option to log in to your router.

Reset the Sagemcom Fast 3890v3

There is usually a small reset button located on either the back or the bottom of a router. This is what a typical reset button looks like:

Router Reset Button

Reset buttons are usually tiny. Yours may look slightly different than this. 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 10 seconds and watch the lights. The lights on the front of the router should do something different when the reset happens. It is harmless to hold the reset button too long.

Keep in mind that this will completely reset your Sagemcom Fast 3890v3 router.

Only do this once 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 Sagemcom Fast 3890v3

Now that you have finished resetting your router, you need to log in using the default username and password from the factory. You can follow the Fast 3890v3 Login Guide to find everything that you need to log in.

Change Your Password

Be sure to change your router's default password after you get logged back in. 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 Sagemcom Fast 3890v3 Guides

If you want additional help with your Sagemcom Fast 3890v3 be sure to check out some of our other guides.

This is the reset router guide for the Sagemcom Fast 3890v3 sw05.76.6.3c. We also have the following guides for the same router: