If you have a virtual server which has more than 1 virtual processor and is hosted by HYPER-V technology then you can face problems during time measurement. As the result you can see that login to such server can take quite long time and you can see strange errors in EventViewer saying something like “Windows cannot obtain the domain controller name for your computer network” etc.
The solution to such problems is quite easy – you only have to add /usepmtimer switch to your server’s boot.ini file and restart the virtual server. This will cause a different approach during time measurement and will fix mentioned problems.