KB: Test Connection is failing with Error code -1 Value cannot be null

You just updated the Oracle management pack with the latest release and during a connection test you get this error.


You execute an test connection and you get the Error -1


This could happen due to that the scom console is using a old version of the Oracle configuration dashboard from of the cache.


Open the NT services control panel and restart the NT service "System Center Data Access Service" 


After the restart wait 1 minute and retry the test connection. The problem is resolved.