Network Utilities

Simple Instructions to Help Setup a Port Forward on the Sagemcom Fast 3890V3 Router

Your Sagemcom Fast 3890V3 router protects your home network by limiting incoming connections from the internet. Sometimes it is necessary to unblock some of those connections like when you want to create a direct connection for gaming, use a specific application, or set up a new device on your network. This process is called forwarding or opening a port. In your Sagemcom Fast 3890V3 router you many need to open a port which means assigning a port number or set of port numbers to a specific IP address. This routes the incoming data to the correct device on your network.

To open ports in your Sagemcom Fast 3890V3 router follow the steps below:

  1. Setup a static IP address on the device or computer you are forwarding these ports to.
  2. Login to your Sagemcom Fast 3890V3 router.
  3. In your Sagemcom Fast 3890V3 router, navigate to the Port Forwarding section.
    • Find the Access Control option at the center of the screen and click it.
    • Click on the Port Forwarding tab at the top of the screen.
  4. Create a Port Forwarding entry.

If the process of forwarding ports in your router seems difficult to you, you are not alone! Do not get discouraged. Let us walk you through the steps for opening a port in the Sagemcom Fast 3890V3 router. Just follow along as we lead you through the process of opening a port in your router.



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Setup A Static IP Address

Set up a static IP address in the device that you are forwarding a port to. This is an important step that keeps your ports open even after a reboot, power outage, or other type of device or router disconnect.

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  • Or follow our Static IP Address guides to setup a static IP address.

After setting up a static ip address on your devices you need to login to your router.

Login To Your Sagemcom Router

Log in to the Sagemcom Fast 3890V3 router. To do this you need to use a web browser because the Sagemcom Fast 3890V3 router uses what is called a web interface.

It normally doesn't matter what web browser you use so go ahead and open up your favorite. If you don't have a favorite or are confused, open up Chrome, Firefox, or Internet Explorer.

If that is confusing to you, we have simplified this step with this link: Login to your Fast 3890V3 Router

Once you have opened up a browser window, find the address bar. This is usually at the top of the page like the image below shows.


192.168.0.1

Look at the screenshot above and find 192.168.0.1 in the address bar. This is your router's IP address (which is sometimes called the computer's default gateway.)

The Sagemcom Fast 3890V3 router's default IP address is: 192.168.0.1

After typing your router's IP address into the address bar, make sure to click the enter button on your keyboard. You should see a box similar to the one shown below.

login

Enter the username and password for your Sagemcom Fast 3890V3 router. Note: If you have changed these numbers in the past, you will need to enter in the those values.

  • The default Sagemcom Fast 3890V3 Router Username is: home
  • The default Sagemcom Fast 3890V3 Router Password is: home

Once you have entered your username and password, remember to click the Login button to login to your Sagemcom Fast 3890V3 router.

Sagemcom Usernames and Passwords

If the username or password did not work check out our Default Sagemcom Router Passwords page.

If you are unable to log in even after trying the above list of passwords you may need to consider a reset for your router. Our guide How to Reset a Router can help you with that. After resetting the Sagemcom Fast 3890V3 router your username and password will be reverted back to factory defaults.

Find the Port Forwarding Section

After a successful login to the Sagemcom Fast 3890V3 router you should be on the home page of your router. Now you need to find the Port Forwarding section.

home

  • Find the Access Control option located near the center of the screen and click it.
  • Find the Port Forwarding tab at the top of the screen and click it.

You should now be on a page that says Port Forwarding.

Create A Port Forward

Opening a port to a specific device may solve problems that you are having on your network. Make sure that it is necessary though, before opening a port, because you are effectively creating a pinhole in the firewall portion of your router that could lead to malicious traffic on your network. The risk is exceedingly low though, so don't let this warning stop you from making this change if you need it.

Here are the ports to forward for Xbox Live:

TCP Ports:3074
UDP Ports:3074

If you are looking for the ports for a different application you can find it by either:

port forwarding

  1. Type in a name for this forward in the Custom Service Name box. Choose a name that will help you remember why this forward was set up since it does not effect the functionality of the forward.

  2. Choose Other from the Service dropdown box.

  3. Select the protocol type of the ports that you are forwarding from the Protocol dropdown box. If your router has the option of Both, then go ahead and select that. Otherwise select either TCP or UDP as needed. If you need to forward a port for both TCP and UDP but your router does not have Both, then you will need to create two entries.

  4. Leave External Host blank.

  5. The External Port box accepts either a single number or a range of numbers. If you are forwarding a single port number then enter that port number into the External Port box. If you are forwarding a range of ports such as 1000-2000 then you can enter the lowest number of that range into the External Port box, followed by a hyphen, followed by the largest number.

  6. You need to enter the IP address that you are forwarding ports to into the Internal Host box. It's possible for this to be either the IP address of your computer or any other IP address on your network that you want ports forwarded to.

  7. Take the same values that you entered into the External Port box, and enter them into the Internal Port box.

  8. When you are completely finished, click the Add button at the bottom of the page to apply these changes.

Test If Your Ports Are Open

Finally, I strongly recommend testing to see if you forwarded the Sagemcom Fast 3890V3 ports correctly. To do this you can use our Network Utilities tool, which includes a free Open Port Checker. Open Port Checker is the only online port checking tool that has Guaranteed Results.

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