R410 Modem becomes unresponsive after some time

After having successfully connected to LTE-M and MQTT the modem ceases to respond to AT commands (‘Time out’). This can happen after a few seconds or after 10+ minutes but it will happen at some point. Any pointers how to solve this?

I have been able to reproduce this on multiple boards. The boards have been updated to the latest firmware.

Thanks,

themuli

Hi @themuli,

Did you disable PSM?
https://support.sodaq.com/Boards/Sara_AFF/Examples/passthrough/#general-r4-commands

Best regards,
Jan

Hi Jan,

I did not and it seems to do the trick.

Thanks,

themuli.

1 Like