Nope not solved. I came to understand that the router doesn't support sucha function. It would be great if anyone has a solution

Hello Steph' RMSI have a Cisco RV325. and have the same probelm. Would you please share with me how did you do this?WAN1 ----> LAN14 (untagged VLAN 123)  and LAN13 (tagged VLAN 123) ----> ISPFor example Did you use a cable to connect WAN to LAN 14?VL...