Issue with changing DB User ID and password for a flexconnector - any ideas?

We have a FlexConnector, which worked fine against a development database, so we decided to implement it in our production environment.  After entering the production information in the Database JDBC Driver, Database URL and Configuration Folder entries in the Connector Parameters, we received the following error message "Failed to update simple parameters of connector [flexconnector name].

Unfortnately, this issue did not create an entry in the Container Log Files - so debugging has become quite the issue.

Has anyone else experienced this issue, and if so, can you share how your resolved it?