I just wanted to share my resolution of a pesky AD problem.
I installed AD using the Automated AD tool in Server 2008 r2.
I verified the server's DNS was working.
I had the client pointed at the server DNS.
I had the client pointed to the server WINS.
I could ping the server FQDN and Netbios name.
Still couldn't join the domain!
It kept complaining network path not found despite all the above.
Well finally I went to the server and found that the "File and printing services" was not checked.
I checked this box and VOILA!!! Finally my client can join the domain!!!