Don't forget your Kerberos - Security Support Provider Interface (SSPI) authentication failed

I had a colleague reach out to me today because they were facing an issue calling Dynamics CRM 2015 web services over HTTPS. The calls worked over HTTP, but not HTTPS. He sent me the details of the exception he was getting, as seen below. SOAP security negotiation with https://d....2/A....EV/XRMServices/2011/Organization.svc for target https://dcb.../A...EV/XRMServices/2011/Organization.svc failed. See inner exception for more details. Security Support Provider Interface (SSPI) authentication fa…

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