I see others have had issues with FMP 12 quitting, that I have not had yet, but with files hosted on the server, I keep losing connection with host forcing the hosted files to close. Are there any settings to prevent this?

Except for the "disconnect on idle", no.

Check what the server event log has to day about it. If it says "user x no longer responding" then it is typically a wonky network.

Thanks, it looks like it does it when the server wants to run a script, even it it's a script in a different database. Still trying to figure out what's going on the other times it happens, but it seems to be at specific times of the day.