@nicolati Ok, I found the issue, but this was working before!!! :) Which means that this feature now is working correctly, I assume, and before it had a bug. The issue was that the DHCP Legal Server...

@Clive_A Hi Clive, I did the upgrade to my SG3428X, but after that the switch started to have the same problem I had months ago: all devices connected to the switch under VLAN different than the...

@Clive_A Hi Clive, it was v1.2, but now the Controller says v1.30 . Ok, I will try it next week. Downgrade is always possible, right? :) Thank you, Fra

@Tintronic Hi Tintronic, This works in my case, I have OC300 and I have 2 sites, with a single controller in one site. I have opened on the controller site 3 kind of ports for the Controller IP...

@CPRDPL Hi, The message per se means that the device cannot reach the Controller. But, then you need to understand why. Sometimes it's lack of internet connection (if the controller is on another...

@Clive_A Hi Clive, is it valid for SG3428X V1.2 (now 1.30) as well ? Thank you, Fra