There are lots of posts about how to address the issues with windows 10 and samba and I tried several of them including enabling smb1 on the Windows machine. Only the one here worked for me:
https://devanswers.co/discover-ubuntu-machines-samba-shares-windows-10-network/
I used it on two Ubuntu 18.04 machines and it did the trick. I haven’t tried it on hass.io yet. Frankly I’m a bit reluctant to do so. I can still see my hass.io systems from linux so I’ll probably wait until the fix incorporated in a future update.