The driver on the laptops is the driver they came with out of the box. It is a year old driver compared to what dell has available for them models now. As for the network setup we are using all AP105 units but only have issues where these new laptops are stationed.
Current version is 6.4.0.2
Static WEP 64 Bit Key
Band is all
Timeout is 1000 Secs
Max client is 255
Our broadcast/multicast settings are disabled
There is no authentication server setup
We also go through a bluecoat proxy unit here.
I do not know if I have provided any information that could help out much but if you need any specifics let me know. Thank you!