Trying to install FileMaker 18.104.22.1688 on Windows Server 2012 R2 and I'm getting the ARR is not installed and not able to download error:
I've installed ARR 3.0 manually as per FileMaker's own instructions and it's showing as installed:
However I'm still getting the same error. I see people have had this issue in the past across various versions and have suggested various fixes but none seem to work for me..... help!
Below is a screen shot of the system details just in case it's useful: