After upgrade to Spotlight 11.5, numerous false alerts during specific night time hours about connection failures:
Monitored Server - SQL Server Connection Failure: Cannot connect to SQL Server instance 'xxx,1433' : A transport-level error has
occurred when receiving results from the server. (provider: TCP Provider, error: 0 - The semaphore timeout period has expired.) : The semaphore
timeout period has expired 
Data file fixed space remaining could not be evaluated because disk data is not available on.