Nano no longer shows up as device in itunes

Question

My nano no longer shows up as a device in Itunes.  Connection is good as it still charges, but nothing when I plug it in.  Does not show up as device in windows either.

Answer 1

Until you fix it, make future purchases in itunes direct.
Are you using a different computer? Mac or Windows?
Which iTunes version?
Any security software potentially blocking access to AppleTV from iTunes.
AppleTV1 as you know has 2 modes - streaming and syncing.  It has to be configured as a sync library for purchases to transfer to itunes and for you to sync to it.  Synced content appears under My Movies etc.  Streaming only content appears under My Shared Movies etc if a sharing libarry is configured.
You cannot copy purchases back to a shared itunes library only the sync library.  Both sync and share connected AppleTVs however should appear under Devices in itunes.  Can you send a song to AppleTV from itunes using Airplay?  The fact that you can buy on AppleTV means it's connected to the internet - it does not mean that it is connected with iTunes on your LAN - the 2 things are separate.
If you no longer have a sync library you would need to change exisitng settings which will delete current synced material but apparently (never tested so can't be sure) not non-backed up purchases.
Under AppleTV's Settings>Computers menu, the top entry is teh sync library - if this is greyed out then either it's no longer available (eg different computer) or AppleTV and itunes are not connected.  If you select it and choose to remove it,you can re-add the AppleTV to itunes afresh - if itunes doesn't see the AppleTV requesting a pairing when you try this either there's a communication/network issue (hardware or software related) or perhaps itunes installation corruption.
Good luck.
AC