guys someone with many miners on same router can tell me if i need to make changes on router upnp (a friend told me if i can sync to the pool with my other miners is because the pool ping on same port and they cannot be all connected on same port ) is that true ?
You need a Euro guy from France to answer.
You are using a French internet service. So I don not know much about their setup what they let pass do they bump you or do not bump you.
I use cablevision's optimum online service.
They would shut me down every 4 to 6 days if I ran a bitcoin node.
But they would allow many miners to connect for weeks on end no issues.
I have had up to nine miners connect to kano.is pool but not more as I would be bumped at nine.
You only have three machines you should be able to hook them up.