Setting unmanaged-devices=none in {BASE}usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf worked for me in getting NetworkManager to manage the ethernet port, though I don't know if that messes anything else up. :^)
This was for a Ubuntu 16.10 hybrid USB build.
Setting unmanaged- devices= none in {BASE}usr/ lib/NetworkMana ger/conf. d/10-globally- managed- devices. conf worked for me in getting NetworkManager to manage the ethernet port, though I don't know if that messes anything else up. :^)
This was for a Ubuntu 16.10 hybrid USB build.