The ports that need to be forwarded for Steam Client are listed here:
Steam Client - PC
- TCP: 27015, 27036
- UDP: 27015, 27031-27036
Forward Ports for Steam Client

You may need to forward ports in your router when you use Steam Client. By forwarding ports you allow connection requests coming from the internet to be directed to Steam Client.
Routers are not designed to allow incoming network requests. By forwarding a port you can overcome this limitation.
Before You Forward a Port
You need to know the following things before you can forward a port:
- The IP address of your router.
- The internal IP address of your computer.
- Each of the TCP and UDP ports that you need to forward.
Locate Your Router's IP Address
The easiest way to locate your router's IP address is to run our free Router Detector utility. Our Router Detector tool is free to use and is part of our Network Utilities software.
Otherwise, you can follow our guide Find Your Router IP Address.
How To Forward Ports for Steam Client
We have Network Utilities software that can forward ports for you. With Network Utilities, you can easily forward ports and also un-forward ports quickly so that you can keep your network up to date with the ports that you need forwarded and maximize your network security.
Port forwarding can also be set up step-by-step by hand. The normal process for forwarding a port is:
- Begin by logging in to your router.
- Find the port forwarding section in your router.
- Put your computer's IP address in the proper box in your router.
- Put the TCP and UDP ports that you are forwarding for Steam Client in the correct boxes in your router.
Usually you have to reboot your router in order to save the changes.
You can choose your router from our list to see exactly how to forward ports for Steam Client:
List of Routers - Customized for Steam Client
That is the process required to forward ports in your router for Steam Client.