Well, I just bought this MacBook I'm writing from but I'm having some network issues. Any help would be appreciated.

Here at home we have a TRENDnet router that splits the internet bandwidth to three computers, two desktops (both PCs, one XP and one Vista) and a notebook via wireless (Vista as well). As the MacBook scanned the area searching for the wireless network, he successfully found it. But when I tried to connect, all my tries ended with the message "connection failed". Then I decided to use an ethernet cable to the router and the connection worked like a charm (and here I am). So I don't think the problem is in the router itself.

I tried searching around the system configurations for both the MacBook and the router, with no success. I really need the wireless configuration. Can anyone help?

Thanks in advance.