A few days ago all my outlook clients were disconnected. Looking into it and the Microsoft Exchange RPC Client Access service had died. Tried several restarts of the system but the service will not go into a running state. It always says Starting. But it is actually terminating and restarting. In the system log get Event 7031 - "The Microsoft Exchange RPC Client Access service terminated unexpectedly. It has done this 1 time(s). The following corrective action will be taken in 5000 milliseconds: Restart the service." I can't find anything else on the error in any log file. Some other info not sure if this related or not. The contentIndex are corrupt and will not rebuild. Get a state of "Failed" with an error message of "The database has been dismounted." Also at time the system is very sluggish. Mostly right after a reboot for an hour or two. Details about the system are; Running Exchange 2013 SP1 on server 2012 R2. All roles on one machine. About 20 mailboxes. Database is about 40gig. No VM, just a normal server. plenty of diskspace, memory and CPU. The system has been running fine for about a year. Also, mobile devices and OWA work fine. Mail flow is fine. Outlook just can't connect.
Tried restoring the databases and logs from before the problem started but that did not help.
Not sure what to try from here.
Thanks