A device and method for forming a packet data network (PDN) connection at a dual access priority mode configured user equipment (UE) is disclosed. The method comprises sending, from the UE to a mobility management entity (MME), a PDN connectivity request message that includes a NAS signaling priority override indicator to indicate that the PDN connection has a different NAS signaling priority mode than an existing PDN connection. The existing PDN connection is operating in a first signaling priority mode. The existing PDN connection is deactivated at the UE. A new PDN connection, operating in a second NAS signaling priority mode, is established at the UE.