The problem is kinda weird. Stating that I'm new to the active directory scenario [microsoft overall] the question is the following. We have a domain lets say "foo.com" registered on one of this service like gratisdns and so on... The foo.com points to a web page whit information about the company and so on, but since is not ready yet you have to insert username and password in order to see the website. Now my boss is trying to set up a domain inside our company named "internal.foo.com". This works just fine until the point he tries to make a DNS server inside the Active Directory server he is installing. Now the thing is that when he is trying to put in domain the machines we get some weird error. In fact the machines are asking username and password as on the foo.com website.
I have tried to set as primary DNS the Active directory where our internal DNS is running, but with no success.
What do you think can be the problem?