trouble with private vpn connectivity in Windows 10

Hello

I'm trying to install a vpn - private internet access - on my desktop PC running Windows 10. I followed their instructions entering their address, username, password  in the Network settings but when I try to connect, the message says "A connection to the remote computer could not be established, so the port used for this connection was closed."

Any ideas on how to fix this problem? Is PIA not windows 10 compatible? Any suggestions what vpns are?

Thanks so much.

Brooklyn