We’ve noticed some issues lately with some FileMaker clients running on Mac OS 10.9 Mavericks. They include random disconnects from the server. The following error messages may appear as a symptom of this issue: “Communication with the host was interrupted and could not be re-established. All affected windows will be closed.” or “Client “xxxx (XXXXXXXXXX) …”

URL http://cimbura.com/tech/2014/09/25/filemaker-issues-mac-os-10-9-mavericks/