@HellBent thanks for the quick response. Actually the MAC did not change. One of the devices is even a TP link switch. I am pretty confident, I have only one DHCP server, which is my Omada gateway....

I was very surprised to find out, that my ACLs are not working until I read, that easy managed switches simply don't support them. I would suggest to add this feature, as without it, it makes the...

Hi, I have for all my devices and for some clients static IP adresses. Sometimes this is not honoured by the Gateway, which acts as my DHCP client. Looks like a bug to me. Any ideas how I can enforce...

Thank you so much! It works!

@MR.S thanks again for your quick answer. Highly appreciated. Looks like I need to do some research, as I am not sure, what tagged and untagged network means. I still have some questions: 1) the...

@MR.S Nope. Everything is as you can see in the first screenshot (map). I am thinking that maybe, I need to connect the gateway to the IoT VLAN (not the default one, that is working perfectly fine)....