Nano cannot be found by iTunes
I haven't been able to get my nano to sync. So I ran diagnostics in iTunes and it says that my nano cannot be found even though it is plugged in with the USB cord it came with. Any ideas on how to fix this? The nano still charges when it is plugged in so I don't think it is a problem with the cord. I also tried a friend's cord and their computer and had the same result (that it couldn't be found). Thank you for any help.
iPod nano, Windows 8