Avoiding 401 response for each request using NTLM

Question

We have here an asp.net 3.5 application using NTLM based windows authentication. The system runs on a private network that actually distributed over different geographic pla

Answer 1

Have you tried this in your domain?

setspn -a FQDNServerName applicationPoolServiceAccount
setspn -a biosServerName applicationPoolServiceAccount

It allows the application pool to service NTLM auth requests.