This document describes how to troubleshoot the issue of Cisco Unity
system not getting started due to maximum concurrent connections running out in
There are no specific requirements for this document.
The information in this document is based on these hardware and
For more information on document conventions, refer to
Cisco Unity does not start, and there are a large number of SQL errors
in the application logs, similarto this error:
Event ID: 17052
Could not connect.
The maximum number of '5' configured user connections are already connected.
The system administrator can change the maximum to a higher value using sp_configure.
Also, if you go to the SQL Enterprise Manager, you can not connect to
the SQL server instance for your Unity server.
Complete these steps in order to resolve this issue:
Go to Start > Programs > Administrative Tools >
Services, and restart the MSSQLSERVER service (even
if it states that it has started).
Once you complete this step, the connection to the SQL server
instance of your Unity server will be allowed from SQL Enterprise Manager.
Go to Start > Programs > Microsoft SQL Server >
Enterprise Manager, and navigate to the SQL server instance of your
Right-click your SQL server Instance, and choose
Click the Connections tab, and set the
Maximum concurrent user connections to be 0.
0 is the default value on install and should never
Reboot the server.
Unity should start successfully.