I own a Thecus N2200 and it all works fine - except for mapping drives under Windows 7. They map fine but I have noticed that after they sit idle for about 20 minutes, if I try to access them Windows just sits there trying to interogate them. The only way to get them back is to reboot. It is very annoying. The only way around it I have so far is to run a Windows cron job every 15 minutes to do a directory on the two NAS mapped drives I have - and this stops them from timing out.
Adminittedly - I could just keep using the cron job but wanting to know if others are experiencing the same thing.