I have a number of students with new Windows 7 laptops logging into an existing domain that runs across 2 Windows servers (one Win 2003 one Win 2008). Of a group of 30, sometimes only 10/12 students (max) can login, others sit on a 'Welcome' screen or get a blue screen. These laptops sometimes work when restarted, others may need re-starting many times before the student can log in. It is rare that I can get all 30 logged in within a 30min period.
If I test the same student logins on an XP laptop over the same wireless, it works OK. If I test the students on a Windows 7 desktop or laptop using Ether net it works OK (although I am losing some drive mappings for some of the users although I will post this question seperately). The students rely on the wireless network for domain authentication - the environment does not enable me to provide Ethernet support for more than 1 / 2 laptops each time.
From my research so far I am inclined to think that the laptops need to see the wireless before they authenticate but I am not sure how to progress this to confirm and resolve. All student profiles are roaming profiles stored on the server. All students when they can eventually log in get a message from Windows 7 to let them know that a temporary profile is in use for their session.
Any advise would be much appreciated !