ASP.NET authentication
 

Morning all.
I've written an app in C# that authenticates against a Win2000 domain when using forms authentication.
It works great in our UK office but from any other office it doesn't work at all.

All offices share the same top level domain i.e.:

DOMAIN-UK (UK)
and
DOMAIN-IE (Ireland)

The LDAP connection string looks a little like this:

LDAP://uk.int.domain.net

It should be looking higher up the tree if it can't find the entry but it's not and even if I remove all "uk" bits and replace with "ie" it still doesn't work - anyone have any idea what's going on with this?

I can post bits of code if needed.
:help: