Symptoms

The client tried to start the K2Server, but got the following error in the log files: Keyword not supported: ''k2connectionstring]pooling'.
 

Diagnoses

Normally when you get an error with h] around it, it means that there is a placeholder somewhere in a configuration file that did not get updated properly.
 

Resolution

We perform a re-configure to replace the placeholder and that seems to have done the trick.