Well, we developed a module that imports data from Active Directory before, and we ran into a few problem there before. We eventually solved it by leaving all fields blank, so that it used default values (we assume) and it worked. Apparently we can't do that with this provider? The problem only occured on our network, btw. And also, sometimes the connecting would fail, in less than 10% of the attempts. The customer did not have these problems.

Anyway, now they want to add a module to post news items etc, but we need the "validation" from AD to do this...

Is there anything specificly I should be aware of?

I am getting the same error on a development server that is NOT part of the domain. My question is: for this auth. provider to work, does the web server need to be part of the domain?