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Reset the Sagemcom Fast 3890v3

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

This guide shows you how to reset your Sagemcom Fast 3890v3 router. Resetting a router is different than rebooting a router. Every time your router loses power it reboots. 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. When you reset your router, the following will happen.

  • The router's login credentials are reset.
  • All WiFi login information and network names are reset.
  • If your router has any ISP settings they will be removed, and you will have to contact your ISP.
  • Any firewall settings, parental controls, and port forwards that you have configured will be removed.

Resetting your router should be considered the last step. 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

Have you considered using a VPN when you connect to the internet? A VPN is a great way to increase your security and anonymity while surfing.

We use and recommend NordVPN because not only is it the fastest VPN, it includes a new feature called Meshnet that makes securely sharing your home network super simple. 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.

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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 Sagemcom Fast 3890v3 sw05.76.9.7k-6 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

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

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Most of the time you can find a small reset button located on either the back or the bottom of a router. Most reset buttons look like this:

Router Reset Button

Your reset button may look different, but usually they are very small. Sometimes the reset button is under a pinhole on the back of the router, and you need a paper clip to push it.

Watch the front panel lights while you hold the reset button down for at least 10 seconds. Notice how the lights on the front of the router are blinking. When the lights do something different, the router is reset. 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 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 the router, you need to login to the router interface using the default username and password. You can follow the Fast 3890v3 Login Guide to find everything that you need to log in.

Change Your Password

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

Tip: Put your new password on a post-in note and stick it to the bottom of your router.

Other Sagemcom Fast 3890v3 Guides

This isn't our only Sagemcom Fast 3890v3 guide. We also have the following guides for this router.

This is the reset router guide for the Sagemcom Fast 3890v3 sw05.76.9.7k-6 Com Hem. We also have the following guides for the same router: