I called FM support yesterday. And I got some help, but the problem has come back. My databases are being hosted on a Mac tower on FileMaker Server 15. My coworkers and I connect to the databases remotely, but the databases aren't showing up anymore and we get the 'the file could not be opened. either the host is not available or the file is not available on that server' message. I thought it was working, but when my supervisor changed users (i.e. from the server account to his personal account) I can't see the databases anymore.
I'm not very tech-savvy so bear with me