The server installation batch file has a line to install run the forge installer:

java -jar forge-installer.jar --installServer

This particular line was causing frozen forge installations and the inability to install the server. It was remedied by supplying a minimum ram requirement as outlined in this forum post:

java -Xmx1024M -jar forge-installer.jar --installServer

This was preventing a server install and caused some hair pulling, hopefully this can be fixed.