Once a two-way forest trust is set up, how long does it take for the domains from the external forest to show up. For example, if I want to add users from one of the external domains to a group in my domain. thanks, Paul

If there is no connectivity problems then there should be no latency or problems. This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Microsoft Student Partner 2010 / 2011 Microsoft Certified Professional Microsoft Certified Systems Administrator: Security Microsoft Certified Systems Engineer: Security Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows 7, Configuring Microsoft Certified IT Professional: Enterprise Administrator

It should be relatively instant because the DC in one forest contact the DC in another forest. There is no forest replication to another forest. Hope it helps.MCTS...