Your RT-AC3100 router helps to protect your network by blocking incoming internet connections. This is an important feature that helps you to control which applications have access to your network. Sometimes you want to allow network access to a specific application in order to play a game, connect a device, or use an app. The Asus RT-AC3100 can unblock certain incoming connections through port forwarding or by opening a port. You can open ports in your RT-AC3100 by assigning specific ports to an IP address. Forwarding these ports directs incoming data to a specific device or application.
The following steps will show you how to open ports on the Asus RT-AC3100 router:
- Set up a static IP address on the device or computer you are forwarding these ports to.
- Log in to your Asus RT-AC3100 router.
- In your Asus RT-AC3100 router, navigate to the Virtual Server / Port Forwarding section.
- Find the WAN button at the left of the screen and click it.
- Click the Virtual Server / Port Forwarding tab at the top of the screen.
- Create a Virtual Server / 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 Asus RT-AC3100 router. Just follow along as we lead you through the process of opening a port in your router.
In order to ensure that your ports remain open in your device even after it reboots, it is important to set up a static IP address in your device.
Recommended - Our free program will setup a static IP address for you.
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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.
The Asus RT-AC3100 router uses a web interface to display router settings. In order to login to the Asus RT-AC3100 router you need to use a web browser.
Open your favorite web browser. If you don't have a favorite or are not sure what this means, open up Chrome, Firefox, or Edge. If you are already in a browser window, go ahead and open up a new tab.
We have simplified this step for you with this link: Login to your RT-AC3100 Router
Find the address bar in your browser window. This is usually found at the top of the page, like in the image below.
Above is an example of what a web browser address bar looks like. Find the address bar in your web browser and type in your router's IP address.
The default IP address for the Asus RT-AC3100 router is: 192.168.1.1
Once you have entered your router's IP address in the address bar go ahead and click the enter button on your keyboard. You should see a box like the one shown below.
Enter the username and password for your Asus RT-AC3100 router. Note: If you have changed these numbers in the past, you will need to enter in the those values.
- The default Asus RT-AC3100 Router Username is: admin
- The default Asus RT-AC3100 Router Password is: admin
Once you have entered your username and password, remember to click the Sign In button to login to your Asus RT-AC3100 router.
Asus Usernames and Passwords
If the username and password did not work I recommend checking out our Default Asus Router Passwords page.
If, after trying the above list of passwords you still can't login you may need to consider a reset for your router. Learn how to do that by reading our How to Reset a Router guide. After resetting the Asus RT-AC3100 router your username and password are reverted back to factory defaults.
After successfully logging in to your Asus RT-AC3100 router you should see the router's home page on your screen. Find the Virtual Server / Port Forwarding section of your router.
- Click the WAN button, which is at the left of the screen.
- Find the Virtual Server / Port Forwarding tab at the top of the screen and click on it.
You should now be on a page called Virtual Server / Port Forwarding.
Make sure that you must open a port in your router before doing so since this will allow data to come through the firewall portion of your router to a specific device. It is possible that this could lead to malicious traffic on your network. However, don't let this warning stop you from making this change if you need it because the risk is very low.
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:
Click on the Add Profile button.
In the Service Name box, type in a name for this forward. This will serve as a reminder to you in the future as to why this forward was set up, so give it a name that makes sense to you.
Use the Protocol dropdown box to select the protocol type of the ports you are forwarding. If your router has the option of Both, then choose that. Otherwise, choose either TCP or UDP as needed. If you need to forward a port for both TCP and UDP and your router does not have Both, then you have to create two entries.
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 colon, followed by the largest number. An example would look like this: 1000:2000.
Leave Internal Port blank.
In the Internal IP Address box, enter the IP address that you want ports forwarded to. This may be the IP address of your computer or the IP address of another device on your network that you want to forward ports to.
Leave Source IP blank.
Click the OK button at the bottom of the page to apply these changes when you are completely finished.
Test If Your Ports Are Open
Finally, I strongly recommend testing to see if you forwarded the Asus RT-AC3100 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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