I have/had a HomeGroup on my Ethernet network with an iMac and Windows 10 computer. I can no longer see the iMac when I click Network in the File Explorer. No doubt some setting needs to be changed.

What is interesting is that one of my Windows 10 backups goes to a HD connected to the iMac - and it works.

Many thanks...

Todd

Windows 10 Build: 19041
Mac HighSierra