This is a windows 2012 R2 domain environment with a server on the same internal network as the domain controller. Just wondering how to test if connection between a server and it's domain controller is a secure connection?
Reason this issue has arisen is because we have a GPO setting certain Firewall exceptions and all of these are set to 'Allow connection if it is secure'. However these have not been working and it is necessary to change this to 'Allow Connection' (non-secure).
Is there something specific that needs to be done to ensure a 'secure' connection.