A firewall controls the incoming and outgoing traffic between the server and the Internet. Opened ports can be a security risk, due to which not every port is automatically opened.
If opened ports are needed for a game server or certain applications, a port forward must be performed.
Click on Windows Button and Search "Windows Defender Firewall with Advanced Security" :
Right Click on "Inbound Rules" and Select "New Rule" :
With this new rule, the "Port" is selected as the "Rule type" and confirmed with "Next" :
Choose between TCP or UDP for your application and enter the desired port number to forward under "Specific local ports" Then click "Next" :
Select "Allow The Connection" and Click "Next" :
INFO: With "Name" only a name for this new "Rule" must be entered, this can be freely selected.
You should choose a name that is still unused and unique so that it can be found under "Incoming rule" or "Outgoing rule".
As soon as "Finish" is confirmed with the button, the rule is activated and the port is forwarded.
