Has anyone done NTLM client authentication with APM that ends in a webtop?

We've been trying to setup the above, and i'm wondering if anyone else has tried it in 11.5 or earlier versions?

 

We seem to be hitting bugs constantly when using chrome (the session breaks, and the webtop doesn't display), and randomly when using IE.

 

There is a case logged, but i'm not getting much response, and i'm more curious if anyone has actually done this before?

 

Cheers,