This page shows you how to login to the Sagemcom Fast 3864AC router.
Other Sagemcom Fast 3864AC Guides
This is the login guide for the Sagemcom Fast 3864AC 8.379 Optus. We also have the following guides for the same router:
Find Your Sagemcom Fast 3864AC Router IP Address
In order to login to the Sagemcom Fast 3864AC router, we need to know it's internal IP address.
| Known Fast 3864AC IP Addresses |
|---|
| 192.168.0.1 |
Start with the first IP address in the list and then follow the rest of this guide.
If you do not find your router's interface later in this guide, then try a different IP address. Keep trying different IP addresses until you find your router. 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 Find Your Router's Internal IP Address guide.
- Use our free Router Detector software.
The next step is to try logging in to your router.
Login to the Sagemcom Fast 3864AC Router
Your Sagemcom Fast 3864AC is managed through a web-based interface. The way you manage it is by using a web browser like Firefox, Edge, or Chrome.
Enter Sagemcom Fast 3864AC Internal IP Address
Either copy/paste or type the internal IP address of your Sagemcom Fast 3864AC router into the address bar of your web browser. The address bar looks like this:
Press the Enter key on your keyboard. You should see a window asking for your Sagemcom Fast 3864AC password.
Sagemcom Fast 3864AC Default Username and Password
You must know your Sagemcom Fast 3864AC username and password in order to log in. Just in case the router's username and password have never been changed, you may want to try the factory defaults. Below is a list of all known Sagemcom Fast 3864AC default usernames and passwords.
| Sagemcom Fast 3864AC Default Usernames and Passwords | |
|---|---|
| Username | Password |
| printed on router | printed on router |
Enter your username and password in the dialog box that pops up. You should be able to try them all.
Sagemcom Fast 3864AC Home Screen
You should now see the Sagemcom Fast 3864AC home Screen, which looks similar to this:
If you see this screen, then good job, you are now logged in to your Sagemcom Fast 3864AC router. At this point, you can follow any of our other guides for this router.
Solutions To Sagemcom Fast 3864AC Login Problems
Here are some ideas to help if you are having problems getting logged in to your router.
Sagemcom Fast 3864AC 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 Sagemcom passwords. Here is our list of all Sagemcom Passwords.
Forgot Password to Sagemcom Fast 3864AC Router
If your ISP provided your router, then you may have to call them and ask them if they know how to login to your router. Sometimes they will have your password on file.
How to Reset the Sagemcom Fast 3864AC Router To Default Settings
The last option when you are unable to get logged in to your router is to reset it to the factory defaults. Our How To Reset your Router guide can help you reset your router to factory defaults.
Other Sagemcom Fast 3864AC Guides
Here are some of our other Sagemcom Fast 3864AC info that you might be interested in.
This is the login guide for the Sagemcom Fast 3864AC 8.379 Optus. We also have the following guides for the same router: