PS3 detects networks but wont connect. help?

Last night my ps3 what streaming Netflix and connecting to the Internet wirelessly with no problem. Today I come home from work wanting to go on Netflix and it says my internet cannot be connected to. my playstation can detect the networks it seems them when I run a scan and when I try to connect, but it says cannot connect to the access point.

And here's the thing, I can connect with an Ethernet cable. I have contacted Sony but they don't know, my internet service provider doesn't know. I can see the networks, which to me eliminates the possibility that my network card could be going out. I am at a loss. Anyone else have similar problems or had similar problems and solved it?