I’ve a 2015 MacBook Pro with no physical Ethernet port. Occasionally I need to connect directly to a system of several devices on a Brainboxes SW-504 Ethernet switch.
From an older MacBook with a built-in Ethernet port, this is a no-brainer — just plug into the switch and set my Ethernet IP address to an appropriate static IP and netmask.
From the newer MacBooks, I seem not to be able to make it work through a USB adapter. The network services panel keeps insisting that:
“Either the cable is unplugged or the other end is not responding.”
The adapter I’m using is an Insignia 3 USB Gigabit Ethernet Adapter (NS-PU98635).
I assume this is because the Insignia adapter’s driver is looking for a router and won't initialize until it finds one? Insignia support has confirmed that the model won’t work without a router connection. Does anyone know of one that will?
If there”s a way to make this work via some command line settings, great. I’ve put several hours into searching and found nothing. On the other hand, I’m more than willing to buy a different adapter that’s known to work in my situation.