Problems with ServiceStack Authentication when deployed to IIS 7 - authentication

Question

I am having problems getting authentication to work when deploying to my IIS 7 production web server. I am using the in memory authentication and everything works perfectly when I run locally from Visual Studio. However when I try to connect to the production web server, from a WPF application using the ServiceStack client, I am getting different errors including:
"Not Found"
"Unauthorised"
"{"Length cannot be less than zero. Parameter name: length"}"
I have tried numerous configurations of authentication in IIS including enabling/disabling Forms Authentication, Windows Authentication and Basic Authentication, all to no avail.
I can sometimes connect using the CodeInChaos.com REST client.
The password and username are definitely correct.
global.asax:
public override void Configure(Funq.Container container)
{
RegisterPlugins();
RegisterValidators(container);
RegisterCaches(container);
RegisterSessionFactories(container);
RegisterRepositories(container);
RegisterUsers(container);
}
private void RegisterPlugins()
{
Plugins.Add(new AuthFeature(() => new AuthUserSession(),new IAuthProvider[] { new BasicAuthProvider()}));
}
private void RegisterUsers(Funq.Container container)
{
var userRepository = new InMemoryAuthRepository();
container.Register<IUserAuthRepository>(userRepository);
string hash;
string salt;
new SaltedHash().GetHashAndSaltString("xxxxxxxx", out hash, out salt);
userRepository.CreateUserAuth(new UserAuth
{
Id = 1,
DisplayName = "xxx xxxxxx",
Email = "xxxx#xxxxx.com",
UserName = ""xxxxxxxx,
FirstName = "xxxx",
LastName = "xxxx",
PasswordHash = hash,
Salt = salt,
Roles = new List<string> { RoleNames.Admin },
}, "xxxxxxxx");
}
My client:
public UserEntity GetUserFromDomainUsername(string domainUsername)
{
try
{
using (var client = new StormJsonServiceClient(WebServiceUrl){UserName = "xxxxxxx", Password = "xxxxxxxx"})
{
var response = client.Send(new UserFromDomainUsernameQuery { DomainUsername = domainUsername });
return response.User;
}
}
catch (Exception exception)
{
var ex = exception as WebServiceException;
if (ex != null)
{
throw new VqsWebServiceException(GetWebServiceErrorMessage(ex));
}
throw;
}
}

Answer 1

IIS authentication is not related to ServiceStack authentication, turn it off if you don't need it.
If you have IIS authentication enabled it would run effectively on top of your ServiceStack application. So it would run before all requests to your ServiceStack service and you would end up having to satisfy this security criteria first. If this passed your request would then go through to the ServiceStack application.
Most people implementing authentication in ServiceStack will not require IIS to also implement authentication.