Disabling  secure boot resolved issue.
When Ethernet cable is connected I get "Start PXE over IPv4 on MAC". I remove the ethernet cable and system comes up correctly. I then attach ethernet cable and ethernet comes up and runs. Moments ago I installed the latest patches, and a BIOS update, so software is current. This problem just started happening a week or so ago. I think a restart works OK (Not completely verified) Checked boot entries Windows file is first, and I disabled the other 2 entries. Let me know if there is a solution!
Area-51m R1, boot after shutdown PXE