[ActiveDir] Remote Assistance

[Cothern Jeff D. Team EITC]

Windows XP SP2 machines   I have followed the guidance in kb301527   The windows Firewall is turned off completely.  Both machines are in the same domain.  A Domain admin on one XP machine is trying to offer assistance to another XP machine.  I put the machine name in and hit connect and it errors out saying connection failed. Cannot find any information in the event log.  I am able to connect to \\machinename\C$ so definitely have admin rights.    Anyone have any other ideas not put into the above KB article?