Hello , I have configured several RUT204 without having any issue , but not this time, I am unable to establish connection with SIMcard , if I go in status / network/ mobile : sim card state is : " inserted " , but operator state is "unregistered" it seems like is unable to connect IPv4 , firmware version is: RUT2_R_00.07.01 Modem Version : EC25VFAR02A13M4G , also I have another three RUT240 with SIMcard loaded which are working fine, I try to swap simcard just to make sure is not a " sim " issue but all simcard that work with the others rut240 when plugged on this one will not connect all 4 with the same error : " unregistered " ... any suggestion ?
Thank you .