Linksys SPA-400 Login Instructions

This page shows you how to login to the Linksys SPA-400 router.

Find Your Linksys SPA-400 Router IP Address

The first thing that we need to know in order to login to the Linksys SPA-400 router is it's internal IP address.

Known SPA-400 IP Addresses
192.168.0.1

You may have to try using a few different IP addresses from the list above. Just pick one 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, after trying all of the above IP addresses, you still cannot find your router, then you can try one of the following steps:

Follow our guide called Find Your Router's Internal IP Address.
Use our free Router Detector software.

The next step is to try logging in to your router.

Login to the Linksys SPA-400 Router

The Linksys SPA-400 router has a web-based interface. You need to use a web browser to manage it, such as Chrome, Edge, or Firefox.

Enter Linksys SPA-400 Internal IP Address

Either copy/paste or type the internal IP address of your Linksys SPA-400 router into the address bar of your web browser. The address bar will look like this:

Press the Enter key on your keyboard. You will be prompted for your Linksys SPA-400 password.

Linksys SPA-400 Default Username and Password

You must know your Linksys SPA-400 username and password in order to log in. It's possible that the router's password is still set to the factory default. All of the default usernames and passwords for the Linksys SPA-400 are listed below.

Linksys SPA-400 Default Usernames and Passwords
Username	Password
Admin	blank

In the window that pops up, enter your username and password. You should be able to try them all.

Linksys SPA-400 login screen

Linksys SPA-400 Home Screen

After you get logged in you should see the Linksys SPA-400 home screen, which looks like this:

router status mac address internet IP — This is the *status* page from your Linksys SPA-400 router.

When you see this screen, then you are logged in to your Linksys SPA-400 router. Now you can follow any of our other guides for this router.

Solutions To Linksys SPA-400 Login Problems

Here are some other ideas that might help you get logged in to your router.

Linksys SPA-400 Password Doesn't Work

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

Forgot Password to Linksys SPA-400 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 Linksys SPA-400 Router To Default Settings

If you still cannot get logged in, then you are probably going to have to reset your router to its default settings. If you decide to reset your router to factory defaults, then you can follow our How To Reset your Router guide.f you still cannot get logged in, then you are probably going to have to reset your router to its default settings.