Well, I finally got this working, though I'm not sure which step made the difference. Here is what I did...
- Uninstalled Wireshark 3.0.0
- Uninstalled WinPcap
- Uninstalled Npcap
- Installed Wireshark 2.2.7. After this install completed, the Ethernet interface started showing traffic again and I could capture from it. (The Ethernet interface had NOT been showing any traffic with my previously installed 3.0.0 version.)
- Went to Help -> Check for Updates
- Followed prompts to install Wireshark 3.0.0, including selecting Npcap.
- Install was successful, and I'm capturing from the Ethernet interface again!!!
Thanx for everyone's help!
feenyman99