RADIUS Firewall rule for Windows Server 2012 R2
I am setting up AuthPoint for Mobile VPN - SSL. If I turn off the Windows Server 2012 R2 server's firewall, everything works okay. When the firewall is active, the Firebox tells me, "Authentication server TestLabRadiusServer(192.168.40.3):1812 is not responding msg_id="1100-0003"
I tried to add a firewall rule on the Windows Server, but I am not having much luck. It might be a Sunday afternoon thing. The Radius server is port 1812. I would be very grateful if someone could provide me with the detailed information I need to create this rule. Of course, it would be really nice if the Authpoint Gateway Installer (msi) did this for me during the installation process. 
Adrian from Australia
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Did you do something like this?
See the"Opening Ports on the Windows Server Firewall Using GUI" section.
https://www.parallels.com/blogs/ras/configuring-windows-server-firewall-for-parallels-ras/
Yep.. I tried to make an Incoming rule. My logic was that the Radius server (the Firebox 192.168.40.1) was using port 1812 to chat to the Authpoint Gateway running on the Windows server. So I set the local port to 1812 with action "allow" across all three profiles (Domain, Private and Public).. No luck.. Then I reversed it to set the remote port as 1812 - still fizzed out. Then I tried the program (radius.exe)..
Adrian from Australia
Kimmo said that the default is UDP port 1812
https://community.watchguard.com/watchguard-community/discussion/comment/2783#Comment_2783
Ah.. Sometimes it is the simplest thing.. I used TCP instead of UDP.. Sigh!
Thank you for your help Bruce
Adrian from Australia
That is why I am here