This post is applicable to customers using VMware vCenter Server 6.5. Problem: vCenter Server deployed with Self-Signed Certificates. Login to vSphere Web Client. Try to upload a file to a Datastore and receive the message: “The operation failed for an undetermined reason. Typically this problem occurs due to certificates that the browser does not trust. … Continue reading vSphere 6.5 – Unable to upload files to Datastore or deploy OVAs