Here is the situation. I am trying to get a Macbook Pro running a fresh install of OSx 10.5.8. I have been trying for a while now to get this machine to join Active Directory with no success. The error I keep getting is "This computer is unable to access the domain controller for an unknown reason." I CAN ping the server just fine and when I use nslookup I get all the right IP addresses. I tried forcing it with the dsconfigad command but get the exact same error after I enter the network password. I also tried going into the Directory Utility and binding it through the active directory service and the LDAPv3 service only to get the exact same error again. PLEASE help I have no idea whats wrong here!