Hello.
Well, there'll be no need to test solution 2 since our friend @Cowardlyduck did it and he said the problem persists. Windows keeps tryng to connect to a different network.
A variable i have in common with him, is that students bring their own laptops. We can't do much than just setup it for wireless connection.
Let me tell how things happens here.
Some student brings his/her laptop ok.
When it connects to one AP, the server gives him a IP address. The AP doesn't act as a DHCP server, there's a 2003 server (AD,DNS,DHCP,Printing services and some files) who gives to the laptop an IP address.
Also, we setup a proxy for the student. (ERhm, there's a big WAN(across states) where i do work).
Those are my conditions here.
But for now i decided to just leave things quietly...
I just teach the student how to connect to wireless networks, tell him the default password and nothing more. I just wanted to make things easier for me and to 'em.
Thanks in advance, what i readed here gave me some nice ideas for the future.
Pablo.