I am the IT Admin for a large family-owned Real Estate company. I support 150+ users on the lower three floors in a six story office tower. I am running two physical networks - voice and data. Our data network is comprised of a wired with two VLANs/IP Scopes and a wireless network with four SSIDs. I recently decided to replace the workstations hosting property listing slide shows, on the first and third floors, with Raspberry Pi 4Bs running Ubuntu 19.10. I turned to the Ask Ubuntu Forum when I couldn't figure out how to make the wired networks "managed". A few days later I was able to piece together suggestions from previous versions of Ubuntu and came up with a solution that solved the problem for me. I hope what I found helps others with the same problem. If I run into a Ubuntu problem I will check out Ask Ubuntu first.