I followed some suggestions: 
https://askubuntu.com/questions/906636/ethernet-adapter-was-disable-on-ubuntu-17-04/909185#909185
 to fix the problem.  Specifically, I edited the file:
/usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf 
and changed the line 
unmanaged-devices=*,except:type:wifi,except:type:gsm,except:type:cdma
to 
unmanaged-devices=*,except:type:ethernet,except:type:wifi,except:type:gsm,except:type:cdma

I also followed the suggestion: 
https://askubuntu.com/questions/1039233/no-wired-connection-wired-unmanaged-ubuntu-18-04/1043244#1043244
and edited the file: /etc/NetworkManager/NetworkManager.conf and changed the 
line
managed=false to managed=true

After sudo systemctl restart NetworkManager and a reboot the problem seems to 
be fixed.  
Incidentally, there were quite a few problems with the upgrade, and I had to 
reinstall the
Ubuntu Desktop to fix some of these.  I do not know if the NetworkManager files 
were changed or deleted  when I did this.

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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to network-manager in Ubuntu.
https://bugs.launchpad.net/bugs/1986444

Title:
  network-manager fails to detect usb internet adapter

Status in network-manager package in Ubuntu:
  New

Bug description:
  Since I upgraded to Ubuntu 22.04 from 20.04 several days ago, my ugreen 
network adapter is not detected even though the lights between the ethernet 
cable and the adapter are on.  I am using a 
  Dell G3 3500 that came with windows 10.  The adapter works ok on my Dell XPS 
and worked fine
  with Ubuntu 20.04 on the Dell G3.  Other devices are detected when plugged 
into the usb.  
  The wifi is working.  Any help with this would be appreciated.

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: network-manager 1.36.6-0ubuntu2
  ProcVersionSignature: Ubuntu 5.15.0-46.49-generic 5.15.39
  Uname: Linux 5.15.0-46-generic x86_64
  ApportVersion: 2.20.11-0ubuntu82.1
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Aug 13 19:16:38 2022
  IfupdownConfig:
   # interfaces(5) file used by ifup(8) and ifdown(8)
   # Include files from /etc/network/interfaces.d:
   source-directory /etc/network/interfaces.d
  InstallationDate: Installed on 2020-12-04 (617 days ago)
  InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
  IpRoute:
   default via 192.168.0.1 dev wlp0s20f3 proto dhcp metric 600 
   169.254.0.0/16 dev wlp0s20f3 scope link metric 1000 
   172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown 
   192.168.0.0/24 dev wlp0s20f3 proto kernel scope link src 192.168.0.4 metric 
600
  ProcEnviron:
   LANGUAGE=en_US
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: network-manager
  UpgradeStatus: No upgrade log present (probably fresh install)
  nmcli-nm:
   RUNNING  VERSION  STATE      STARTUP  CONNECTIVITY  NETWORKING  WIFI-HW  
WIFI     WWAN-HW  WWAN    
   running  1.36.6   connected  started  full          enabled     enabled  
enabled  enabled  enabled

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