microsoft LDAP connection

I have recently purchased a trend micro enforcer appliance. I am trying to get it to connect to the LDAP on my server 2000 DC. I cannot get it to connect for the life of me. I have used the ldp.exe program to ge the correct string and i have also tried the adsi.

the weird thing is that i can even type the full ldap address that it gaves me, which is LDAP://AD.jhc.test/DC=jhc,DC=test into a web browser address field it gives me an error sayng that ist can’t connect

but when I use ldp.exe or adsi I can browse ldap just fine.