HTTP请求未经授权使用客户端身份验证方案'Ntlm'。从服务器收到的身份验证标头是“Negotiate，NTLM”

I've looked through a ton of SO articles, and even other sites, but can't seem to get this service working. I have a SOAP service I'm trying to hit and it's configured like this:I've looked through a ton of SO articles, and e