iOS5 not working on my Wi-Fi network

hi,

have ipod touch 4g ios 5.1 wich great have little problem.

when configured ipod, used wi-fi network of course , worked, imessage, facetime, notifications , more, also, when connect network works theres strange problem. on other house network dont work imessage , notifications, dont know why, reseted router , nothing, kinda strange.

solution?

thanks

 

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