Originally Posted by slowcruizer
Could it be a windows firewall ,norton security, or windows defender issue?
Yes indeed, one sometimes looks for the most complicated solution while the most simplest could be right under our nose although it is funny that you can access the server.
You could indeed turen off the Windows Firewall and Norton Internet Security (just in case the Norton Firewall is running). Windows Defender should have no affect on things.
If you can try and join the domain once again and after a minute or so can you check your Event Viewer in Vista and see if there are any errors or warnings for the time you tried to join the domain.
Can you tell me the version of the OS X Server.
Is Vista running DHCP and is the Server running DNS?
I do not know much about Mac Servers but I know that in Windows Servers you can put a computer into the domain list so the computer does not have to ask permission to join as the admin has already given the go ahead by putting it name in the list...
I'm sure we will get to the bottom of it..