Macbook CAN'T see wireless network while others can

Hey,
I've searched everywhere and can't find the answer. I have a macbook and am visiting Norway from the US. I am in an office with several people and they can all "see" the wireless network but I cannot. BUT I can see several other networks from neighboring offices. I can connect just fine to the wireless connection at my hotel. Also I have no problem "seeing" and signing on to the office's wireless using my iphone, but as I said my macbook doesn't even see it. I tried "other" and typed in the name and password (several times) but to no advail.
Any suggestions o wise ones?
Don Anderson

I do this at home for enhanced security.
Unfortunately it does not add any security. The network name is still broadcast between any connected clients and the base station. Therefore the network name is easily discovered in just a few seconds.

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Macbook CAN'T see wireless network while others can

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