If the Ethernet connection is not working on a Mac, resetting the network service usually fixes it:

1. Disconnect the adapter from your computer.
2. Open System Settings (or System Preferences) and go to Network.
3. Select "USB 10/100/1000 LAN" and remove it using the minus ("-") button.
4. Plug the adapter back into your computer.
5. Add "USB 10/100/1000 LAN" back using the plus ("+") button.
6. Open the "Advanced" settings for that connection.
7. Click "Renew DHCP Lease."
8. Click "OK" and check the connection. "USB 10/100/1000 LAN" should now show as connected.

If Ethernet still does not connect, contact us at support@satechi.com.