I have the same problem sometimes. It looses USB connection. Also you can try using Logitech Profiler and download one of those patches. I dont really know which one but maybe Momo-Update-beta5. http://www.wingmanteam.com/files/Patches/beta/
Not sure about this but when you set up a server with this layout run a practice session and let people run their times. After certain time copy those times and arrange grid. (Not sure about this but thats how we did it in LFS Karting League)