I have set up the RUTX12 and Sim 1 is the primary, yet the Sim 2 LED is always on and the Sim 1 LED has never come on. In the GUI it shows my primary model is using the Sim 1 operator, so I cannot work out what is going on. It is also showing traffic passing on the primary modem (Sim 1). Both Sims are connected to the two different operators.