Can't connect to hotspot internet

[lzooml]

I've created a hotspot by using Airport on my iMac.
When I try to connect it through my Sonyericsson mobile phone, there is no problem. It directly connects after entrance of the password.
However, when it comes to both my lenovo and packardbell notebooks, they can't. One is running Win7 and the other is Vista, none of them connects to that hotspot.

Wireless connection name is visible, when I click onto it to connect, it doesn't even ask for a password, directly tells "couldn't connect" that's it, there is no option no solution.

What might be the problem ? How can I solve it?

 

[simsaladimbamba]

Is it WPA (2) or WEP protected?

 

[lzooml]

WEP protected.
Well, it's the only option I'm allowed to choose for protection.

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Is it WPA (2) or WEP protected?

It seems like the problem is related to protection.
Cause when I turn the protection off, it directly connects.
However I can't use it that way as there are a lot of wireless users around.

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OK, solved.
Just need to setup a wireless network on the windows.
Thanks though