@Virgo I agree and checked exactly that. The router (192.168.10.1) and the switch (192.168.10.3) are both devices manged by the Omada controller. You can see from the packet capture that for some...

It appears there is a DHCP server running on both the switch and the router. I do not understand how to manage this configuration from the Omada controller to get the correct network behavior. My LAN...