I have the same issues here running windows 8.1 64 pro. The service seems to start a couple of times, then stops working and the computer is not monitored anymore. I read somewhere this happens when a windows update is installed? Anyways - this seems to pretty critical, so any idea how to fix this? The .NET Framework Repair Tool seems to not help.
We just installed windows 8 on a couple of computers and so far mobilepcmonitor works almost as expected and with no difference from windows 7. Almost that is, because the wake-up function does not seem to work anymore. Any idea what could be causing this? No settings on the router were changed after swapping to windows 8. cheers, e