Hello,
My RUT955 has FW version: RUT9_R_00.07.02.4. I got SIM card (three.co.uk) that works fine in mobile phone. When I plugin the SIM card in the RUT955, I can see the mobile data disconnected. I try to put the SIM card in different SIM slots and set the APN as Auto or as three.co.uk ( I read it from mobile phone when the SIM card works inside.), the mobile data is still disconnected. When I go Network -> Interfaces, I can see the status of MOB1S1A1/MOB1S2A1 is Stopped. The mobile signal strength is OK (-55 dBm). Any idea? Best Regards.