Hi,
I'm experiencing an intermittent problem where nRF9160 devices aren't able to establish an LTE connection. Recently our SIM provider made a configuration change that caused a number of devices to have their connections dropped, and several of them were not able to re-establish a connection for a number of days. Many of these devices are in the field, but I was able to examine one of them and found that this message was output as the device tried to open a CAT-M1 connection:
<dbg> lte_lc_helpers: parse_cereg: LTE mode not found, error code: -22
I'm working through this with our SIM provider and would like to know if you're able to say what would cause this message to be generated?
Modem firmware is 1.3.5 and the application code is built with SDK 2.4.2.
Thanks,
Frog
