Unreliability of logonserver variable

When referencing this variable, be aware that it is not updated, so may not show where the secure channel is currently with.
So, you may log on and find that the initial logon is against DC2. However, at some point during the session, the secure channel may be established with DC1. However, the logonserver variable will not be updated to show this.
Therefore, nltest /sc_query: is far more reliable.