The Live Mesh team is currently investigating an issue and would like your help. If you have a computer on the Device page of your Live Desktop with the warning “This device is synchronizing but cannot be remotely accessed” you should be able to resolve the issue by restarting that computer. If restarting that computer does not make the warning go away, we would appreciate it if you could collect the computer’s Live Mesh logs (by going to Start Menu > All Programs > Live Mesh > Collect Live Mesh Logs, which generates a .cab file on your desktop) and email them to lmprev@microsoft.com.
Thank you for your help, and for using Live Mesh,
The Live Mesh team