How to configure Lync Access Control
Configuring database connection string
Go to the configuration (by default the config will be found under C:\agat\Bastion\filters\skype-pool-a\Lync_Access_Control.XML)
Add the database connection string relevant details
Add the Key and IV values from the Admin Portal configuration
Restart the Bastion
The Key and IV are needed to apply Ethical Wall Policies or DLP for Webapp/MAC and Mobile devices. Check the following article for additional details as to how to find it:
How to find the Key and IV in the Admin Portal