I have an original Nintendo DS (Nintendogs Teal!) and I'm trying to access the GTS in Pokemon Diamond. My wireless router won't work, so instead I have the wifi USB connector. I can click "Connect to your Nintendo Wi-Fi USB Connector" button in "Nintendo WFC Settings".

It will wait a few seconds and say "The system will now initiate a connection test. Tap OK to begin."

I press OK

Testing connection...

It will be full green bars. And then suddenly it goes down to none and it will say...

"ERROR CODE: 52103

Unable to connect to Nintendo Wi-Fi Connection. Confirm connection settings and access point settings. For help, visit www.nintendowifi.com."

I've tried what I could. But I can't connect to wifi!