HyperV 2016, Windows guest no internet?

I have a small environment running on a T330 with onboard NIC's.

The host server is Win2016 

The guests are mix of linux & win2016. 

They all can access the internet fine & work mostly well, but the Win2016 guests all show "no internet" at the NIC. Which is a problem for Office365 Proplus unable to confirm licensing in a shared environment. 

Ideas?