Event ID 0: "An SSL connection could not be established: The security certificate, Cert is not suitable for use with SSL connections. The Key Usage field is unsuitable.. This message was reported from the Citrix XML Service at address https://FQDN of DDC/scripts/wpnbr.dll. The specified Citrix XML Service could not be contacted and has been temporarily removed from the list of active services." on the Storefront server.

Install a new certificate with Key Encipherment as key usage to resolve this issue.

Problem Cause