Right, I have a Philips SNB5600/00 wireless router and a phat DS. Basically my problem is that I find network, has good connection for about 20 seconds then goes. I get the error code '51300'. Nintendo says; The WEP key for the Access Point you are attempting to connect to has changed since you last connected. What to do: Verify the Access Point's WEP Key and try again. If you need assistance, click here and select your router manufacturer and model number. If available, our router pages can provide specific steps and information that may help you with your router's WEP Key. Thing is the network is public and not blocked by a WEP code so this can't be right.... I'm really lost and need help.