Internet connection lost on MacBook Air when connecting a card reader to the computer

If your computer is a MacBook Air and you are establishing a hard-wire connection using Apple USB Ethernet Adapter, your internet connection is cut off when you connect the card reader to the computer’s USB.

This is not an ID-software bug.

MacBook Air users reported this error to Apple in 2011. (

Regretfully, there is no solution to this problem yet.