Diamond And WPA PSK

How to use Global Trade on Diamond with WPA PSK!

Could you elaborate on the issue a bit more? Are you getting any error codes at all or something?

Pokémon Diamond, or all other standard Nintendo DS games cannot use WPA security. Only Pokémon Black/White and newer can use them. You'll have to either go to WEP (I don't recommend this) or use some kind of dongle to your computer.

Unfortunately, WPA2-PSK doesn't work with Diamond as it was developed with only the DS and the DS Lite in mind, and those two systems do not support any other encryption method than WEP. :(

Here's a good writeup on a similar thread if you need help changing the security: http://www.pokecommunity.com/showthread.php?t=298947

Thanks, THAT'S WHY YOU SHOULD USE YOUR FRIENDS FOR WIFI! What, I'm a 11 year old, I can't help it!