I am having a problem getting Remoteapp programs to run when the user connects to a server running Windows Server 2008 R2 Standard through an IPSec VPN hosted on a Negear FVS338 firewall/router. The applications are launched using RDPs on the user's desktop. When executed, they just sit there as if they are launching, but do not progress to normal program launch. I have built test RDPs to launch Microsoft Calc and Wordpad, in addition to the real applications that the user is trying to use. The problem manifests itself with those test apps too. If I restart the server, all the applications will launch normally with minimal delay. I have searched the logs on the server, but cannot find any errors. When the tunnel is enabled, I am able to remotely connect to the server with no difficulty and can map remote network drives. In other words, system behavior seems normal except for the remoteapps.
These problems with the remoteapps do not occur when the user is working in the office. Can anyone provide some guidance on what is happening and how to fix it?