Network Utilities

Fastest Way to Forward Ports on the Arris VMDG505 Router

The Arris Virgin Media VMDG505 router has a firewall that helps you keep your home network safe from unwanted Internet access. The firewall does this by blocking incoming and outgoing connections that are not authorized. All the connections needed to surf the web and check your email are authorized, however some connections that allow for better online gaming or other online programs are not automatically opened. You need to open them by creating a port forward.

On this page I will show you exactly how to port forward on the Arris Virgin Media VMDG505 router. I will walk you through each of the following steps:

  • How to setup a static IP address on the device you plan on forwarding the ports to.
  • How to login to the Arris Virgin Media VMDG505 router interface.
  • How to find the port forwarding section of the device.
  • What information to enter for the port forward entry.

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Step 1

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.
  • 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.

TIP: I recommend writing the static IP address down. You need it a little later in this process.

Step 2

After setting up a static IP address on the device you want to forward these ports to, you need to login to the Arris Virgin Media VMDG505 router.

First, open a web browser. It normally doesn't matter which browser you open, I recommend picking one you are familiar with such as Chrome, Internet Explorer, Edge, or Firefox.

Next, locate the address bar. This is at the top of the page like this:

I have circled the address bar for you in the image above. All you need to do is replace what is in the address bar with the router's IP address.

By default the router's IP address is:

Simply enter the router's IP address in the address bar and press the Enter key. This should take you to a login page like the one below:

Arris VMDG505 default login

If you do not get a page asking for a username and/or password, you need to find out what the router's IP address has been changed to. Go ahead and follow our guide titled How To Find Your Router's IP Address.

You should see a box or screen asking for a username and password.

  • The Default Arris VMDG505 Router Username is: admin
  • The Default Arris VMDG505 Router Password is: password

Having Trouble?

This is a common place to have problems. Here are a few tips:

  • On occasion router manufacturers change the defaults on us. If the defaults we gave above did not work try some other common Arris passwords. Here is our list of known Default Arris Router Passwords.
  • Still unable to login? Did you change the username/password in the past? Try guessing some of your more common passwords you use. You can also use our Find Password App.
  • Still stuck and getting frustrated? It might be time to consider a factory reset. This is not something to take lightly. A lot of settings may be changed, depending on how much you have personalized your router. Learn the basics of resetting a router here at How to Reset a Router.

Step 3

This third step will help you find your way to the port forwarding section of the Arris Virgin Media VMDG505 router. We begin on the Home page.

Arris VMDG505 Home

First, open the Advanced Settings link in the left sidebar.

Then click the Security link.

Finally, select the option of Port Forwarding.

Arris VMDG505 Port Forwarding

You should now be on the correct page to make a port forwarding entry.

Step 4

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:

You need to enter the IP address that you are forwarding ports to in the Local IP 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.

If you are forwarding a range of ports then you need to enter the lowest number of the range into the Local start port and External start port boxes and the highest number of the range into the Local end port and External end port boxes. If you are only forwarding a single port then you can enter that same port number into the Local start port, Local end port, External start port and External end port boxes.

Select the protocol type of the ports you are forwarding from the Protocol box.

Choose On from the Enabled dropdown box.

Click the Add button when you are finished.

Don't forget to click the red Apply Changes button when you are completely finished.

Check your Ports

Sometimes it can be difficult to tell if the ports forwarded properly, so we recommend using our Open Port Checker to see if the ports forwarded correctly. Our port checker uses a local application to see if the server is listening. This guarantees an accurate reading.

More Information...

Here at we have more than just port forwarding guides. We also have networking, software, and gaming guides. Check them out on our guide page.

Do you need help setting up your router for the first time? How about your WiFi security, is it as strong as it should be? We can help at