You are using an old certificate that lacks the subjectAltName extension. Fix: Modern browsers (Chrome 58+) require SAN. Reissue your certificate with the DNS name listed under SAN.
If you use the default self-signed certificate shipped with SDP, users see a dreaded "Your connection is not private" error in Chrome or Edge. This erodes trust. Non-technical staff may assume the ticketing system is compromised or fake. manageengine servicedesk plus ssl certificate
For the changes to take effect, you must restart the ServiceDesk Plus service: You are using an old certificate that lacks