Thunderbolt ethernet Problem

Question

Hi,
Have a 2013 Macbook Air lastest model and recently bolt a ethernet thunderbolt adapter to receive internet in other rooms but its failing to work!!
It recognises the adapter with a green light in network settings but still not working. Shouldn't this work straight away? I have tested the thernet cable with another computer and it works ok so I believe its the setup thats not right.
Any ideas to cure this simple problem?
Much appreciated

Answer 1

Are you 100% sure your port that looks like a Thunderbolt port is actually a Thunderbolt port?
Here is a tech spec for the Late 2010 MacBook Air:
MacBook Air (13-inch, Late 2010) - Technical SpecificationsOct 20, 2010
It has a port that looks exactly the same as a Thunderbolt port.  But it was Thunderbolt's predecessor - it is actually what was called a mini-display port.  A Thunderbolt to Ethernet adapter would fit perfectly in this port, but could never possibly work because the port does not deal with a Thunderbolt signal.
If you don't know exactly which MacBook Air you have, you can go to "About This Mac" (under the Apple logo in the menu bar), then click "More Info" and see what it says toward the top (year, etc.).