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Wirelessly posted (iPhone 4S: Mozilla/5.0 (iPhone; CPU iPhone OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A405 Safari/7534.48.3)

I don't think the 1st gen iPod can do wireless-n; only b/g. You'll have to set your router to mixed-mode to get it to work right.
 
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