Justec JDR840 routers include a very basic firewall that helps protect your home network form unwanted access from the internet. Since this firewall blocks incoming connections you may need open a port through it for certain games and applications. This process of opening a port is frequently called a port forward, since you are forwarding a port from the internet to your home network.
The basic process to open a port is:
- Setup a static IP address on either your computer or device that you want to forward a port to.
- Login to your Justec JDR840 router.
- Navigate to the port forwarding section.
- Click the Virtual Server link.
- Create a port forward entry.
While these steps might seem difficult at first, we will walk you through each step for your Justec JDR840 router.
It is important to setup a static ip address in the device that you are forwarding a port to. This ensures that your ports will remain open even after your device reboots.
- Recommended - Our free program will setup a static IP address for you. Download Network Utilities today!
- Or, follow our Static IP Address Setup guides.
After setting up a static ip address on your devices you need to login to your router.
Now we are going to login to your Justec JDR840 router. Your router has a web interface, so you will login to it using your web browser. This can be either Chrome, Firefox, Internet Explorer, or Edge. It usually does not matter which browser you choose to use.
Open up your web browser and find the address bar. It should look something like this:
Above is an example of what a web browser address bar looks like. Find the address bar in your router and type in your router's IP address.
The default Justec JDR840 IP Address is: 192.168.0.138
After entering the IP address of your router you can simply press enter. If all goes well you will see the following screen:
You should see a box prompting you for your username and password.
- The Default Justec JDR840 Router Username is: user
- The Default Justec JDR840 Router Password is: password
Enter your username and password, and then click the Login button to log in to your Justec JDR840 router.
Justec Usernames and Passwords
If your username and password do not work then please visit our Default Justec Router Passwords page.
If you still can't login to your router because you forgot your Justec JDR840 router username and password, use our How to Reset a Router Password guide to set your Justec JDR840 router back to its factory settings.
Now we need to find the port forwarding section in your router. Here's how you do it. Starting from the first page in your router:
Click the Virtual Server link near the left of the page.
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:
Pick a number that has not yet been used and put it into the ID box.
If you are forwarding a range of ports separated by a hyphen then enter the lowest number of that range into the Public Port - Start, Private Port box and the highest number of that range into the Public Port - End box. If you are only forwarding a single port number then enter that number into both the Public Port - Start, Private Port and the Public Port - End boxes.
Choose the protocol that you are forwarding from the Port Type radio button.
In this router if you need both TCP and UDP forwarded then you need to create a duplicate configuration. One of the configurations has TCP selected and the other one has UDP selected.
You need to enter the IP address that you are forwarding ports to in the Host IP Address 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.
Click the Add This Setting button when you are finished.
When you're finished, click Save Settings / Reboot near the left of the screen to save your changes.
Test if Your Ports are Open
Now that you have forwarded ports on the Justec JDR840 you should test to see if your ports are forwarded correctly.
To test if your port has been properly forwarded, you can use our Network Utilities tool, which includes a free Open Port Checker. Our Open Port Check tool is the only online port checking tool with Guaranteed Results.
Justec JDR840 Router Screenshots
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