Desmume wifi error code 52000?

i tried many things as enabling firewall and disabling it.but i still get this error. i watched this video http://www.youtube.com/watch?v=avdI6zINL7M and tried. i have wired cable connection and i followed every thing correctly. first it gave me the error 52000. i tried again as given in the video but after... show more i tried many things as enabling firewall and disabling it.but i still get this error. i watched this video http://www.youtube.com/watch?v=avdI6zINL7M and tried. i have wired cable connection and i followed every thing correctly. first it gave me the error 52000. i tried again as given in the video but after waiting 2 hours patiently it gave me the same message. i am totally frustrated. this is the best place where i can get answers so please give me appropriate answer related to my question. thanks in advance. and i will give 10 points to the correct answer.
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