I have 3 machines connected to the WHS right now:
Workstation 1 - Windows 7 Ultimate x64
Workstation 2 - Windows 7 Ultimate x32
Netbook 1 - Windows 7 Ultimate x32
What is happening is the x64 box will stop being able to "see" the WSE. The other two devices can always see it with no problem.
Logging into launchpad, it times out when logging in. Same with the Web Access. I can RDP to the server just fine using DNS or the IP so that rules out the DNS.
Not sure what else could be causing it, it worked fine for the first day.