Pokemon Pearl GTS Problem (Error Code 51099)???

It just won't work. Here's what it said when I tried doing it: No compatible access point in range. Check your connection settings and try again. For help visit www.nintendowifi.com. Error (51099). I might be wrong on a few words, I tried memorizing it. Anyways, what's Error 51099? And how... show more It just won't work. Here's what it said when I tried doing it:

No compatible access point in range. Check your connection settings and try again. For help visit www.nintendowifi.com. Error (51099).

I might be wrong on a few words, I tried memorizing it.

Anyways, what's Error 51099? And how come it won't work? Yes, I do have a wireless router...Please help!

(Oh, also, can I trade items in the GTS or just pokemon?)
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