Due to CredSSP encryption oracle remediation

Recent MS security update was the cause of this error.

An authentication error has occurred. The function requested is not supported Remote computer: <computer name> This could be due to CredSSP encryption oracle remediation. For more information, see https:/go.microsoft.com/fwlink/?linkid=866660

Reference article here

So temporarily you may uncheck “Allow connections only from computers running Remote Desktop with Network Level Authentication (recommended)”  to resolve the issue Or make sure all clients & servers are updated with most recent patches.

 

 

About Kingson Jebaraj

Microsoft MVP, Blogger, Owner and Publisher for Cloudexchangers.com, Microsoft TechNet Author, Solution Architect, Former Office365 Technical Lead for Microsoft(Partner) Extensive knowledge and experience in Microsoft Exchange and Cloud Messaging Services and has got more exposure on Messaging environment deployment,migration,designing and other project management activities, I have earned real time experience in handling multi-site distributed critical large environment of messaging system. Been awarded as an MVP (Microsoft Most Valuable Professional) for Office Servers and services from Microsoft for an exceptional real world contribution made through Microsoft forums and other Microsoft communities. Currently working as “Solution Architect” on Private/Public cloud and SaaS environment for Pacific Controls, UAE, Dubai. One of the largest TIER III certified green data center campus in the middle east.

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