I'm working with CRM 2016, I downloaded Ribbon workbench 2016, its installed successfully.
I tried to open a solution and I got this error message. system.servicemodel.security.securitynegotiationexception: microsoft dynamic crm has experience an error
I searched for that and I found that maybe this error come when there is different version between CRM and Ribbon but in my case all of them is 2016.

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