Healthy,
Here is the way I see it: any software company needs to state requirements for hardware and networking. If you think about it, this is a pretty challenging task. They don't want to set the requirements too high (so people won't buy the software) or too low (and it won't work). Part of the problem is that there are so many variables; what works for one group may not work for another. Clearly some people run a wireless network and have no problems.
If I was using a wireless network and had significant issues, the FIRST thing I would do is try to eliminate that as a source of the problems. To do so is pretty simple; connect your laptops with a wire to the server, and see how much of an improvement you get.
