I'm running into some problems with my network setup here: I have a new late 2016 15" rMBP (with Touchbar, obviously), an older Belkin Thunderbolt Express Dock and a Thunderbolt 3 to 2 adapter (from Apple) to connect both. So far, basically everything I have connected to the dock (several USB devices and speakers, and I have also tried a FireWire drive and my TV via a Mini Display port to HDMI adapter) work fine – except my Ethernet connection. It definitely did (and still does) work when I hook up my old 2012 rMBP to the dock (so it's not a problem with the dock or the general network setup), and I can connect to the Ethernet network on my new rMBP with a dedicated Ethernet to TB3 adapter. So my assumption is that something got messed up in macOS' network settings during the transition, but I don't see an obvious solution. The Network preference pane shows me a Thunderbolt Bridge, which should be the dock, but as not connected. Selecting "Advanced" shows me (for some reason) four Ethernet interfaces labeled Thunderbolt 1, Thunderbolt 1 (sic), Thunderbolt 13 and Thunderbolt 14 respectively, which all are inactive. (On my old rMBP, it shows me Thunderbolt 1 and 2.) I already tried to use the Diagnosis assistant, but without avail. Am I missing something? Does anyone have a tip for me?