problems configure connecting remote to hyper v server

Hey Guys,iam a trainee in IT in my second year and for the next half year of my traineship. So next half year i try to learn as much as possible about windows client/server. I set up a BareMetal-Hyper-Visor with Hyper V 2019 and now wanna connect to it remotley with my Windows 10 Client. I followed instructions here: Both Computers are in the same Workgroup called hyper and i enabled on both machines ping. Both machines can ping each other. From the network side everything looks ok. The Computers are still not in a domain, because i want to virtualize the domaincontroller on the Hyper Visor.