During installation, did you install all parts of FMS without any problem?
Are you using the right Java-version?
Yes, no errors upon deployment of FMS.
We are using Java 8, update 91.
Java could always be a issue.
This is what FMI is writing about current versions of Java with FileMaker
You might be using a to new version of Java. Try to uninstall Java 8 update 91 and go back to a version that FileMaker supports on FMS14
I also got that issue with FMS 15 (on Windows 7, I know not supported) and created another thread on the forum. Things is I still don't know what's the cause, except that it now works most of the time. Johan is right about the Java version, in my case it the version installed by FMS 15.
It would be nice to know exactly what's going on. In my case, it's only a test server, but in your case I presume it's a production server.