The capture from wired interface only return the same line again and again : ARP request : who has 6.191.101.57? My LAN is in 10.10X.0.0. The VLAN 20 is the default, everything (except camera) are using VLAN 20 and it was fine before. The DHCP can reply everytime we connect a windows computer, a wyze (thin client in Debian) a ubuntu desktop, a PDA in A SSID. https://www.dropbox.com/scl/fi/6h770l70d93b4qnpai46h/CERP_wifi_MR-CERP-Informatique_IF-Wired.pcap?rlkey=x73wavve49cktn3cszi40x2vq&st=xri0nua6&dl=0    I will send you the DM hope it'll be correct.   ... View more