I used to have fast internet, then it went slow.. to the point where i couldn't really get any upload speed, even the online speed testers couldn't get the upload working.. i was in despair.. then i changed my router password..and i went to WPA2 rather than WEP (not my fault dumb Nintendo DS needs wep). now my internet is as fast as it used to be. Basically make sure you got decent protection and change that default password on your router. I'm not 100%sure if it is pure coincidence of if someone was leeching my net but it sure felt like someone was.