ipod nano 7gen: connected but won't sync
iPod nano 7th gen had over 100 CDs on it. Over 6GB space free. Added 2 new CDs to iTunes. They will play in iTunes but will not sync to iPod. iTunes Summary shows iPod and will eject. (Nano goes from connected to ok to disconnect.) Ran iTunes diags. Device connect test passed, shows iPod. Device sync test failed, says no iPod found.
Did Restore from iTunes to wipe content on iPod nano. This worked. Nano now has no music.
Did sync in iTunes. Nano screen showed rotating sync icon - for only a few seconds, then went back to "connected". Disconnected. Still NO music on iPod.
iTunes says nano has latest software.
Help please!
iPod nano, Windows 7