Code 306: iPod is not connected. Please make sure that your iPod is connected, then restart iTunes.
From SoundTaxi
Why do I receive "iPod is not connected. Please make sure that your iPod is connected, then restart iTunes" error?
You can receive "iPod is not connected. Please make sure that your iPod is connected, then restart iTunes" error, when you select the converted files and click the "Copy to iPod" button, but your iPod is not connected or may not be connected properly at that time.
How to fix "iPod is not connected. Please make sure that your iPod is connected, then restart iTunes" error?
To connect iPod to your computer, plug the included iPod Dock Connector to USB 2.0 cable into a high-powered USB 2.0 port on your computer, and then connect the other end to iPod. If you have an iPod Dock, you can connect the cable to a USB 2.0 port on your computer, connect the other end to the Dock, and then put iPod in the Dock.
