After you’ve researched any risks, you can follow our guide below to learn how to open a port in Windows and how to close a port to maintain security.
How to Open or Block a Port or Port Range in Windows 10 Firewall
With that, your VPN, SSH, or other software should work correctly. If you are setting up a VPN and still struggling, our dedicated guide may be of some use. You should also bear in mind that the problem may be with your network connection itself, in which case you may want to perform a network reset.