Incorrectly issued certificates are a potential problem with Director configuration. Be sure to follow the guidelines outlined here to rule out any certificate issues:
• Subject Name—Ensure that the subject name matches the fully qualified name of the pool.
• Subject Alternative Names—A Director’s SAN field must contain the server name, and any supported SIP domains in the sip.<SIP Domain> format. Additionally, it must include the simple URLs for
• Key Bit Length—The certificate bit length must be 1024, 2048, or 4096 to be supported by Lync Server 2013.
• Template—The template used to issue the certificate should be based on the web server template. If the Lync Server 2013 certificate wizard ...