PS3 - Key information exchange timed out on wireless

I had this problem with me PS3 and wireless secured with WPA. I tried it with about 3 different wireless routers (they happened to be different brands too) but nothing worked.

Tried:

1. Resetting router

2. Changing SSID,

3. Change WPA key

4. Change to WEP with key

5. Set no security on WIFI

I think the key is no.5. If this doesn't work then you've got a problem with the PS3 I think. I called PS3 support and they sent me a replacement which works with WPA fine.