After an OS restart, it’s now showing the other adapter with the yellow triangle.

Different error message this time.
Before
This device cannot start. (Code 10)
This device does not exist.
After
This device cannot start. (Code 10)
{Operation Failed}
The requested operation was unsuccessful.
After connecting fiber wires to both ends and my switch, I’m seeing this error: Rx Fault.

Since the other port isn’t functioning in Windows, I can’t really tell what’s going on. I’m wondering if this is a driver issue in Windows.