Connection attempt to at least one service in a pool failed. Connection attempts to the following services have failed. Another ...

Connection attempt to at least one service in a pool failed.

Connection attempts to the following services have failed. Another attempt will be made for each service every %1 minutes.
%2
Cause: The specified service(s) are unavailable.
Resolution:
Check the servers in the pool(s) on which the service(s) are installed.