Manage HyperV not in the Domanin

Goodmorning Everyone

I think is crazy but I cannot manage anymore my 2 HyperV by the management Consolle.

Before with windows 8.1 I had no problems. Now I upgraded to Window10 and it doesn't work.

The 2 HyperV are not in the Company domain.. What can I do?

Of course I know administrator password, IP addresses, names, etc....

Please help.... I cannot believe it's not possible.

Thanks