How to write code that calls a WCF service and falls back from Kerberos to NTLM if needed?

This is a bit off a curveball, but why is it falling back to NTLM. I've had significant difficulty with security in active directory and WCF all related to service principal names (SPNs).

I had the same error msg which I posted about here and solved it by creating a dynamic endpoint like so.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.