My adapter connected to a late 2012 Macbook Air seems to be working fine on my wired network in my home for everything except Time Machine.
I have a Mac Mini with OSX server running Time Machine back ups for multiple macs in my home. I have confirmed that other machines in my home network can find Time Machine when they connect to the wired network - these Macs all have standard ethernet connectors built in, so it seems the only difference between those macs and and my Mac Book Air is the Plugable adapter. I am able to back up to Time Machine from this same Mac Book Air without an issue over Wi Fi in my house so Time Machine is configured properly in the network and on the Mac Book Air.
Is there some special setting required to make the Plugable Adapter allow Time Machine traffic through?