Take a look at the wireless settings on the Router and make sure that the router is acting as a DHCP server.
This would be where the Mac gets its IP address from. If that is not set, then the Mac will not connect to the outside world.
Even though the Mac can "see" the wireless signal, it still has to join the wireless network before anything will work as expected.
What happens when you tell the Mac to join this network? Any dialog boxes?
Did you make the network a closed one with a password?
What happens when you run the Airport setup Assistant?
I'm sure that the Mac will connect to the Internet if it was directly connected to the Router, like the PC. You could try that just to satisfy your curiosity. It would not really prove anything but it might make you feel better.
Good Luck
P
ok so i've been tryin to fix this problem for a couple of days and its driving me crazy. i have a 13" mac book and i use a linksys wrt54g router to connect to the internet (this router is plugged to my PC which DOES connect with no problem).
When i open airport and connect to the linksys network it shows its connected but when i open safari it tells me "you are not connected to the internet" it seems i have a strong airport signal but cant go online, i checked system pref. on my mac and it says "airport connected to the network but it does not have and ip address or cannot connect to the internet"
I've called linksys and apple and they cant seem to give me an answer. Ive tired everything they've told me and NOTHING works. im so frustrated with this. can someone help me plz? i would really apreciate it

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