When logging into Director you might see the error:
Unable to connect to Director: IP or DNS name
Reason: Authentication to <Ip or DNS name> failed.
If the Java Console is enabled, its output displays the following:
Exception: server certificate change is restricted during renegotiation String: javax.net.ssl.SSLHandshakeException: server certificate change is restricted during renegotiation
This is caused by certification negotiation between server and client.
Disable TLS 1.0 for Java.