Red Alert 3: Is there a way to play LAN multiplayer?

[virtualpaulus]

I bought two 'C&C ultimate edition' and I am trying to play Red Alert 3 with my son on my local network (LAN).

When creating a network game, each Windows 10 PC can only see itself.  The other PC cannot join since it does not see the other player or game.

Is there something to do to make this work?