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Continue to ChatUpgrade vCenter 5.1 to 5.5 error: "The existing ssl certificate is invalid" https://www.virten.net/2013/11/upgrade-vcenter-5-1-to-5-5-error-the-existing-ssl-certificate-is-invalid/
Upgrade vCenter 5.1 to 5.5 error: "The existing ssl certificate is invalid" https://www.virten.net/2013/11/upgrade-vcenter-5-1-to-5-5-error-the-existing-ssl-certificate-is-invalid/