Cisco DPC3939 XFINITY Login Instructions

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

This page shows you how to login to the Cisco DPC3939 XFINITY router.

Other Cisco DPC3939 XFINITY Guides

This is the login guide for the Cisco DPC3939 XFINITY. We also have the following guides for the same router:

Find Your Cisco DPC3939 XFINITY Router IP Address

In order to login to the Cisco DPC3939 XFINITY router, we need to know it's internal IP address.

Known DPC3939 XFINITY IP Addresses
10.0.0.1

Pick one of these IP addresses and then follow the rest of this guide.

If later on in this guide you do not find your router using the IP address that you pick, then you can try different IP addresses until you get logged in. It is harmless to try different IP addresses.

If you try all of the above IP addresses and still cannot find your router, then do one of the following:

After you find your router's internal IP Address, it is time to try logging in to it.

Login to the Cisco DPC3939 XFINITY Router

The Cisco DPC3939 XFINITY is managed through a web-based interface. You need to use a web browser to manage it, such as Chrome, Edge, or Firefox.

Enter Cisco DPC3939 XFINITY Internal IP Address

Find the address bar in your web browser and type in the internal IP address of your Cisco DPC3939 XFINITY router. Your address bar should look something like this:

Press the Enter key on your keyboard. You should see a window pop up asking you for your Cisco DPC3939 XFINITY password.

Cisco DPC3939 XFINITY Default Username and Password

In order to login to your Cisco DPC3939 XFINITY you are going to need to know your username and password. It's possible that the router's password is still set to the factory default. All of the default usernames and passwords for the Cisco DPC3939 XFINITY are listed below.

Cisco DPC3939 XFINITY Default Usernames and Passwords
UsernamePassword
adminpassword

Enter your username and password in the window that pops up. Put your username and password in the appropriate boxes.

router login screen
This is the login page from your Cisco DPC3939 XFINITY router.

Cisco DPC3939 XFINITY Home Screen

After you get logged in you should see the Cisco DPC3939 XFINITY home screen, which looks like this:

router status mac address internet IP
This is the status page from your Cisco DPC3939 XFINITY router.

If you see this screen, then good job, you are now logged in to your Cisco DPC3939 XFINITY router. At this point, you can follow any of our other guides for this router.

Solutions To Cisco DPC3939 XFINITY Login Problems

If you are having problems getting logged in to your router, here are a few ideas for you to try.

Cisco DPC3939 XFINITY Password Doesn't Work

Perhaps your router's default password is different than what we have listed here. It doesn't hurt to try all of the other known Cisco passwords. Head over to our list of all Cisco Passwords.

Forgot Password to Cisco DPC3939 XFINITY Router

If your ISP provided your router, then you may have to call them to get your login information. They will most likely have it on file.

How to Reset the Cisco DPC3939 XFINITY Router To Default Settings

As a last resort, you can reset your router to factory defaults. The last option when you are unable to get logged in to your router is to reset it to the factory defaults.

Other Cisco DPC3939 XFINITY Guides

Here are some of our other Cisco DPC3939 XFINITY info that you might be interested in.

This is the login guide for the Cisco DPC3939 XFINITY. We also have the following guides for the same router: