I installed tinycp on 2 different system in the same subnet. The service is listened correctly on both system.
Firewall are disabled and I can connect to the control panel also from outside the net.
I added server2 in connection of server1 by going to "manage connection" and adding http://ipserver2:port, , after I see with the "green dot". Filled username and password and login in server2 from server1.
In server1 I enabled two factor authentication. When I try to login from server2 to server1 the system doesn't ask me the otp so it still in process login forever.