If you are experiencing remote computer connectivity issues with the Microsoft Assessment and Planning (MAP) Toolkit (version 4.0.2921), you should try the latest release (version 4.0.2925) available from the Microsoft Download Center.  MAP Toolkit offers readiness assessment for migration to most Microsoft products including Windows 7, Windows Server 2008 R2, Hyper-V, App-V, SQL Server 2008, Forefront Client Security and more.

Cheers,

Baldwin Ng (Sr. Product Manager, Microsoft Assessment and Planning Toolkit)