Technical issues with Heroes III.

Could you please tell me how to set the Hamachi IP address as the default?

Network Environment - Advanced - Advanced Settings - look for Hamachi in the list of your connections, select it, click the green arrow up to move it to the first position, save, restart, it might help :)

I have other problems with Hamachi:
- when my turn changes, the information is transmitted up to 93% and an error occurs, the opponent transmits normally, loading saves and performing other actions on that day doesn't help, but it doesn't always happen, sometimes it's fine for a few days, and then suddenly the game ends :(
- during a battle, an opponent's unit is "active" for me, and my unit is active for him, the only thing that helps is Alt+F4 and a temporary non-aggression pact. Has anyone encountered something similar? And most importantly: how to fix it?