What's the Wifi Glitch in 7.10?

Every machine we install Gutsy on cannot use it's wifi! We've ended up having to reinstall Feisty instead, which always works fine. The machines can always see the router, and if we change locations they see the router at the new location, but still will not connect. I interposed a Netgear AP this week to see if it could talk to that, same result. Have browsed several threads which all seem to concentrate on a particular machine or modem make, or even version of ndiswrapper but no solutions there. Conclusion, glitch in Gutsy and I'm sure somebody knows what it is, but perhaps they are busy rectifying the problem for Hardy. Please don't misunderstand me here, we can only guess at how hard you guys work to give us Ubuntu, and we really do appreciate it, all I need to know is whether to keep all our machines on Feisty or whether to leave it all until Hardy is finished.
Much thanks to all those who continue to give us the excellent Ubuntu.