Hi @awg . Is this the Deco X20 DSL model? For FTTB/FTTN connections, you have to set the Deco into DSL Modem Router Mode (step 4 in user guide). Set DSL connection type as VDSL. Phone cable goes to DSL port on main unit. Regarding VLAN ID, are you sure it was used on the old router? You can try disabling it.   ... View more