FirePass Client .NET SDK-APPCTRLLib.AppTunnelEx and proxy domain authentication

Hi all,

I cannot establish VPN session from my .NET application when proxy server requires domain authentication.

I am using the SetUserProxyCredentials(userName, domain, password) function to pass the domain name but I get the below error:

VPN: OpenSessionFailed: Authentication failed, hError=-2147024891
Is there anything else I need to do to for proxy servers that only allow domain authentication?
If the proxy server requires basic authentication, I simply pass empty string as the domain name and it works with no issue