Sagemcom Fast 3686 Login Instructions

This page shows you how to login to the Sagemcom Fast 3686 router.

Other Sagemcom Fast 3686 Guides

Find Your Sagemcom Fast 3686 Router IP Address

We need to know the Internal IP Address of your Sagemcom Fast 3686 router before we can login to it.

Sagemcom Fast 3686 IP Addresses

If you did not see your router's ip address in the list above. There are 2 additional ways that you can determine your router's IP address:

  1. You can either follow our How To Find Your Routers IP Address guide.
  2. Or you can use our free software called Router IP Address.

Now that you have your router's Internal IP Address we are ready to login to it.

Login to the Sagemcom Fast 3686 Router

The Sagemcom Fast 3686 has a web interface for configuration. You can use any web browser you like to login to the Sagemcom Fast 3686. In this example we'll use Internet Explorer.

Enter Sagemcom Fast 3686 Internal IP Address

Put the Internal IP Address of your Sagemcom Fast 3686 in the Address Bar of your web browser. It looks like this:

Then press the Enter key on your keyboard. You should see a dialog box pop up asking your for your Sagemcom Fast 3686 username and password.

Sagemcom Fast 3686 Default Username and Password

You need to know the username and password to login to your Sagemcom Fast 3686. All of the default usernames and passwords for the Sagemcom Fast 3686 are listed below.

Sagemcom Fast 3686 UsernamesSagemcom Fast 3686 Passwords

Enter your username and password in the dialog box that pops up. It looks like this:

Sagemcom Fast 3686 Home Screen

You should now see the Sagemcom Fast 3686 Home Screen, which looks like this.

If you see this screen, then congratulations, you are now logged in to your Sagemcom Fast 3686. You are now ready to follow one of our other guides.

Solutions To Sagemcom Fast 3686 Login Problems

If you can not get logged in to your router, here a few possible solutions you can try.

Sagemcom Fast 3686 Password Doesn't Work

You should try other Sagemcom passwords. We have a large list of Sagemcom Passwords that you can try located here. Perhaps your router's default password is different than what we have listed here.

Forgot Password to Sagemcom Fast 3686 Router

If your Internet Service Provider supplied you with your router then you might want to try giving them a call and see if they either know what your router's username and password are, or maybe they can reset it for you.

How to Reset the Sagemcom Fast 3686 Router To Default Settings

If you still can not get logged in then you are probably going to have to reset your router to its default settings. You may want to follow our guide called How To Reset your Router.

Other Sagemcom Fast 3686 Guides

Here are some of our other Sagemcom Fast 3686 info that you might be interested in.

Rachel Bauer

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Rachel Bauer is an owner and primary author for She is available on Google+ and you can find more of her articles in the Networking section of our site.