Last week I lost access to my server over port 443. It was out of the blue. No warning, no nothing. Just stopped working.
Today I reinstalled FileMaker Server 17. Everything was working fine until this afternoon. I added some files to the HTTPS docs folder, changed their permissions to Owner = fmserver (read, write), Group = fmsadmin (read, write), Everyone (read only).
Now access through port 443 is blocked. This morning I also upgraded the OS to Mojave and everything was fine .
Hope someone can shed some light here...
My server is a Mac Mini 2014 which was working without a hassle for a couple years.