I tried to do the GTS thing, but i can't. i need a wep key, but what is that??? and if i go to the counter in the gts in jublife city, when the lady lets me in, a message appears saying that there's no commpatable access point in range. for help go to www.nintendowifi.com error 51099.the help on the site is useless. so help me!!!
If we're talking about wifi, a wep key is a password that allows you to connect to your wifi access point. It's sort of like logging in to the wifi network. Whoever setup the access point will have to tell you the password they set on the device.
the error you're getting actually means that your DS is picking up no compatible wireless access points. nintendo-wifi.com has a list of compatible routers and any special requirements for them, so check there and make sure your router is compatible. Then make sure you properly set up the wifi settings from Diamond/Pearl's main menu, under Nintendo WFC settings