Previous version of this comment was placed before handling via support case. However, the solution may be complicated by, or vary, based on use of Multi-Tenant Controller and/or License Rules. There are different access keys and names. If not checked Multi-Tenant Controller and entered correct "Name" (from controller UI>License>Account) and "Access Key" (from controller UI>License>Rules><app>), then result: Controller communication failed. Details: The remote server returned an error: (401) Unauthorized. Please use certmgr.msc to add Controller Certification Authority certificate to "Trusted Root Certification Authorities" at computer account (system) level. If entered else incorrectly, error may also be: Machine agent on host "<host>" is not authorized to report to this Controller. The host is not included in the server scope for license rule "" Just providing additional clarity for those that may have similar issue, and solution doesn't quite fit!
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