I have an interesting problem....my MacBook can connect to any wireless network (Home, motels, public libraries, etc.) without any issues. When I come to my work place (school) it has issues connecting. I drop off or am really slow connecting to our server. We are running an exchange server (if that helps). We also are assigning IPs dynamically. My Mac is running OS 10.5.6. It is the 2GHz Intel Core 2 Duo MacBook. I am wanting to keep my connection to our Airports. Once I connect via Ethernet, I am good to go. My airport connection sometimes works, and sometimes not. It is very frustrating when I need to move around. Any ideas out there? Thanks in advance!!!