You have a "time out" criteria in the Server set up that could be an issue, and the Secutity of each user privilege has a default idle time.
I have a Mac Server and Mac/Window users also. I recently discovered on our local net that having both Airport and Ethernet connections active will from time to time cause "data collisions" between wireless and wired from the same client. This collision is rare, but it will disconnect the client at fault.
You are running FMP Server on a user's Mac?
Not just Filemaker Pro set to share databases.
There could be other applications or utilities interfering or it could be a setting in the Server Admin.
Home > About disconnecting users from FileMaker Server when idleAbout disconnecting users from FileMaker Server when idleIn the Edit Privileges dialog box, you can use the Disconnect user from FileMaker Server when idle option to determine what happens to users of a file shared by FileMaker Server after a certain period of inactivity. You can:•automatically disconnect the user after a certain period of inactivity, or•always keep the user connected to FileMaker ServerBecause the performance of the host can be affected by the number of active connections it must maintain, in most cases, you should edit privilege sets to disconnect users from the host computer when they are idle. Because you can set this option on a privilege set basis, you set certain users to be disconnected while permitting other users to always maintain their connections.Review the following notes for more details on disconnecting clients of shared files.Notes•The FileMaker Server administrator sets the length of time that FileMaker Pro users can be idle in any database hosted by FileMaker Server. The FileMaker Pro Disconnect user from FileMaker Server when idle option determines whether or not a FileMaker Pro client disconnects a user from a particular database. Because users who are disconnected have to reopen the file, FileMaker Server administrators should make sure the idle time is long enough not to annoy users with frequent disconnections.•For the privilege set assigned to the Guest account, you most likely should enable Disconnect user from FileMaker Server when idle. This will prevent users who open a file with guest access from remaining connected to FileMaker Server when idle.•For information on setting the Disconnect user from FileMaker Server when idle option, see Editing other privileges.
Thanks for reply. The computer keeps disconnecting is a laptop. I will check the connection. it should be one connection.
The user have full access with no restriction. The chck box on the server About Disconnecting users from FileMaker Server when Idle is not checked.
I only have a Mac laptop, but a laptop may be disconnecting to save battery power. Check the energy saving controls on the laptop.