and see if they have any sort of filtering on the network.
MAC address filtering is usually how they do that. Each computer has a unique MAC address which IT uses to allow access to the internet/network.
If your Mac address is not on the list, you do not go anywhere but your computer gives every indication that it is connected to the internet.
P
HELP! I have a 13 inch macbook which I purchased in the summer of 2006. I have leopard operating system (third newest system).
I connect to the internet via an ethernet cord. One day the campus internet system went down and when it came back my internet port could no longer work. When we tested the ethernet cord/jack to other computers, it worked perfectly.
So, I bought a USB ethernet adapter. Still, no luck. I tried using other people's ethernet cables and still no.
Then, I bought a d-link wireless port and connected my ethernet cable to it. Other people could log on to the wireless network except for me. It reads that there is an internet connection in my airport, but cannot connect to the internet.
I have tried resetting PRAM.
I have taken the battery out.
Still nothing! Please someone help me!

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