Wireless suddenly slow?

[pw87c]

I ran a speedtest. I don't even know if that's good or bad.

Anyway, my wireless internet recently, in the past 2-3 weeks became very slow. We changed service providers to Verizon FiOS in January, so I don't think that's the problem.

I have a MacBook Pro running on OSX Leopard 10.5.2. I also think my computer is running a little bit slower, but really, it's a huge problem with the internet. It takes 30 seconds to load a page sometimes. I've tried the OpenDNS, and it's still slow.

My airport shows there's full signal, and what's odd is that my mom and brother's laptops (they have PCs) work just fine when they try using the internet. There are no ethernet outlets in my house, since it's brand new and they didn't put them in? I don't know.

The only place I can get good internet is when I'm sitting right next to the router.

Help?