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

Reset the Cisco DPC3941B

Thumbnail image of Setup Router Staff
Setup Router Staff
Last Updated: | Reading Time: 4 minutes

This article covers how to reset the Cisco DPC3941B router back to factory default settings. This is not the same thing as rebooting a router. Every time your router loses power it reboots. Resetting a router erases all settings from it and returns it to factory defaults.

Warning: Proceed with caution; resetting your router can be a major headache. When you reset your router, the following will happen.

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

Resetting your router should be considered the last step. Before you reset your router, you may want to try recovering your router password with our Router Password Finder.

Other Cisco DPC3941B 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 Cisco DPC3941B DPC3941B_4.8p11s1_PROD_sey Comcast. We also have the following guides for the same router:

Recover Password in Cisco DPC3941B

Instead of resetting your router back to factory settings, you may want to try running our Router Password Finder first.

Router Password Finder is designed from the ground up to help you recover your forgotten router username and password, which can save you a lot of time.

Router Password Finder - Automatically Recover Lost or Forgotten Router Passwords

If you are unable to recover your lost router password, then you may have to proceed with a full router reset.

Reset the Cisco DPC3941B

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

NordVPN is the fastest VPN 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 of the time you can find 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

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.

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. Keep holding the button as long as you want, it will not hurt anything to hold it down too long.

Remember, this will erase everything you have previously done to this Cisco DPC3941B 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 Cisco DPC3941B

Now that you have finished resetting the router, you need to login to the router interface using the default username and password. Our DPC3941B Login Guide has all of the information that you need.

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. Our Choosing a Strong Password guide can help you pick 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 Cisco DPC3941B Guides

If you want additional help with your Cisco DPC3941B be sure to check out some of our other guides.

This is the reset router guide for the Cisco DPC3941B DPC3941B_4.8p11s1_PROD_sey Comcast. We also have the following guides for the same router: