Connecting my DS to a FON wireless router.
 

So today I got my free FON wireless router because of a promotion they were having. I plugged it up and got it registered on their website. Now after all of that my DS won't connect to it. The DS will find it and looks like it will connect but just stops for some unknown reason. Right now my computer is hooked up to it and it's running smoothly. Any help and advise would be deeply appreciated.

If I am remembering correctly, the public access for those routers requires users to log in on the "FON" website. Were you connecting through the "private" SSID? You may also need to allow incoming connections in the router's firewall configuration. (Unfortunately, its firewall configuration is only that extensive; it does not allow users to configure their own firewall exceptions.)