Integrated Windows Authentication, NTLMv2 solution?

I need to create an app to access a server within a company's secure intranet that serves ASP.NET web pages but it is authenticated via Integrated Windows Authentication. I thought why not try B4J. I have made it as far as soltypio did in http://ift.tt/1ZGWmrL getting back 401's. Forum searches are coming up short, I've read what I could find on JCIFS, OKHttp/Utils2.

Is there a solution to...

Integrated Windows Authentication, NTLMv2 solution?

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