Setup Router logo in white Setup router name logo in white
Get Software

Reset the Sagemcom Fast 3890v3

Thumbnail image of Setup Router Staff
Setup Router Staff
Last Updated: | Reading Time: 5 minutes

If you need to reset your Sagemcom Fast 3890v3 router back to factory settings, then this article shows you how. A router reset is very different than a router reboot. Turning a router off and back on again causes a reboot. This is different from a reset because a reset completely erases all settings from the router.

Warning: Make sure that you fully understand the following before resetting your router. When you reset your router, the following will happen.

  • The router's login credentials are reset to factory defaults.
  • All WiFi settings are reset, including network name and password.
  • All ISP settings will reset to default, 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. 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 Sagemcom Fast 3890v3 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.

NordVPN is the fastest VPN!

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 Sagemcom Fast 3890v3 sw18.76.10.10o-4 Com Hem. We also have the following guides for the same router:

Recover Password in Sagemcom Fast 3890v3

Instead of resetting your router back to factory settings, 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 Sagemcom Fast 3890v3

Don't forget to sign up for NordVPN's promo deal before it's gone.

NordVPN faster than ever deal!

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. A typical reset button looks like this:

Router Reset Button

Even though yours may look slightly different, you need to look for a tiny button. You may need a paper clip to push the reset button.

Watch the lights on the front of your router and hold the reset button down for about 10 seconds. 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.

Just don't forget that this will totally reset your Sagemcom Fast 3890v3 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 Sagemcom Fast 3890v3

Now that you have finished resetting the router, you need to login to the router interface using the default username and password. We have a Fast 3890v3 Login Guide with all this information ready for you.

Change Your Password

Do not forget to change your router's default password when you log back into it. It is a huge security risk to leave your router's password set to the factory default. Our Choosing a Strong Password guide talks about choosing a strong password for your router.

Tip: A great place to write your new password down is on a piece of paper taped 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 sw18.76.10.10o-4 Com Hem. We also have the following guides for the same router: