When a user tries to connect to a Citrix XenApp 6.0 published application on a Windows 2008 R2 server, Citrix Receiver hangs at "Please wait for the Local Session Manager..." Eventually it times out and the application fails to load. When the user tries subsequent times, the application eventually loads.
This happens for users with and without administrator access and regardless of whether they are accessing the application directly or via Access Gateway. All recommended XenApp and Windows hotfixes have been applied.