We have an account running Mac OS 10.10, Server 5.0.15. We have twelve iMac's running 10.10.
Server Shared Files - (MS Office) user edits file and then hits Save - gets message that connection has been lost. They save with another name and then delete the file they opened - this occurs daily.
Don't know if this is related, but we also get very slow access to the server after a few hours of work. We shut down the work station (it takes a LONG time) - we restart in safe mode and then restart normally and we can access the shared files fine for a few hours. (sounds like finder cache corruption ???)