This guide shows you how to reset your Sagemcom Fast 3864V2 Optus router to factory default settings. This is not the same thing as rebooting a router. Unplugging a router from the wall reboots it. Resetting a router erases all settings from it and returns it to factory defaults.
Warning: Since this erases everything you have done to the router, there are some things you need to consider first. A router reset will affect the following settings:
- The router's username and password are reset.
- All WiFi settings are reset, including network name and password.
- Your ISP settings are reset, which means you will have to contact your ISP to get them back.
- Any port forwards, firewall settings, or parental controls that you have configured will be removed.
A router reset should be considered the last resort when you cannot log in to your router any other way. Before you reset your router, you may want to try recovering your router password with our Router Password Finder.
Other Sagemcom Fast 3864V2 Optus 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.
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 Sagemcom Fast 3864V2 Optus. We also have the following guides for the same router:
Recover Password in Sagemcom Fast 3864V2 Optus
Before you resort to doing a full router reset, you may want to try running our Router Password Finder first.
Our Router Password Finder can recover your lost or forgotten router password without doing a full router reset, which can save you lots of time.
Router Password Finder - Lost or Forgotten Router Password Recovery Tool
If you are unable to recover your lost router password, then you may have to proceed with a full router reset.
Reset the Sagemcom Fast 3864V2 Optus
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Most routers have a small button on either the back or the bottom. A typical reset button looks like this:
Even though yours may look slightly different, you need to look for a tiny button. Sometimes the button is under a pinhole, and you need a paper clip to push it.
Keep an eye on the lights on the front of your router while holding the reset button down for about 10 seconds. The blinking pattern of the lights on the front of the router should change when the reset is complete. It is harmless to hold the reset button too long.
Remember, this will totally reset your Sagemcom Fast 3864V2 Optus router.
Only do this once you have exhausted all other troubleshooting options, such as running our Router Password Finder software, which can recover a lost router password for you.
Login to the Sagemcom Fast 3864V2 Optus
Once the reset is complete, you need to login to your router using the default IP address, username, and password. You can follow the Fast 3864V2 Optus Login Guide to find everything that you need to log in.
Change Your Password
You need to change your router's default password after you log in for the first time. 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: Write your new password down on a note and tape it to the bottom of your router for future reference.
Other Sagemcom Fast 3864V2 Optus Guides
We have collected a lot of information about the Sagemcom Fast 3864V2 Optus router. You can find some of our additional content here.
This is the reset router guide for the Sagemcom Fast 3864V2 Optus. We also have the following guides for the same router: