mid2011 MacBook Air (MacBookAir4,1) thunderbolt ethernet adapter not connected
I have a mid2011 MacBook Air (MacBookAir4,1) with a "thunderbolt" port on the right side ( thunderbolt icon, not display icon), but it doesn't recognize a thunderbolt ethernet adapter that works on my MacBook Pro. Network preference list it as a Thunderbolt1 Bridge, but it stays "inactive".
About this Mac hardware->thunderbolt shows the device as Thunderbolt to Gigabit Ethernet Adapter:
The same adapter+cable+dhcp just works automatically on the Pro.
I haven't tried a PRAM or SMC reset yet.
Thanks
dalonso