I have TWO RUT950 that I'm just about to deploy for 6 months. An OLD one and a NEW one.
My NEW one was latest firmware and although the old one was working fine I stupidly decided to upgrade the OLD one from RUT9XX_R_00.03.129 to latest to match some settings.
It now won't establish a data connection. The only difference between the routors seems to be the old uses NCM and new one QMI. I haven't changed any SIM settings and the sim cards are good. The connect to 4G but no data.
What have I done?