@Vincent-TP I don't really need to set dns except because the adoption fails with fqdn and the switch is set with static ip. As you can read in my first post, my controller is hosted on cloud vps...

@MR.S Emulator starts from version V1.30 and there was an option to set dns, not for v.1.0 But i have the same behaviour with SG2210P v.5.20, inform ip ok, fqdn not. And i'm unable to set dns...

MR.S wrote @Fabiuzz yes all omada managed switches have this, go to switch, select config, go to vlan interface and edit your management vlan This is my SG3428x v1.0, i can't really find whre to set...

@Vincent-TP No, i can't find a solution. It works only if i setup the ip address as inform url. I can't really find why.. and it's a huge problem cause if i'll change my ip forn any reason, i'll lose...

@MR.S unfortunately not all switches have this settings, not mines

@MR.S As you wrote, the ports are fine. But DNS... make me on the right way. I always use static ip setup for my nework device but I found that if i set DHCP on IP address mode in "L3...