XPS 9550 and USB-C to HDMI/VGA/Ethernet/USB 3.0 Adapter Network Drop-out Issue

My LAN connection on the Ethernet port is flapping intermittently, but frequently.  (about once per minute, sometimes more - sometimes less)  I've tried different network cables and different wall ports.  I've tried unplugging and re-plugging both the cords and the adapter itself.  I also have VGA running off the adapter but that's NOT cutting out like the LAN is.  This is a brand new adapter out of the box today.  I used to have a USB-C to Ethernet adapter and that also had the issue until the early February BIOS update.  The BIOS update seemed to fix the issue, but now it's back on this new adapter.  Nothing in the Windows 10 event viewer, either.  I appreciate any feedback, suggestions or input.