Hi,
today I bought in Spain Lebara Data sim card, and I was unable to get connection status - always shows Disconnected. I set up APN, all settings was OK and I tried different settings, restarted router/modem...I updated to latest firmware...nothing, really nothing helps. Then as last solution I restore RUT950 Teltonika modem.
After booting everything works, I finished wizard and all was OK. So guys, if nothing works for you, just restore router to default settings, it helped me!
I updated fw from RUT9_R_00.07.02.3 to RUT9_R_00.07.02.7