RUT955 stops answering 2

My previous case was closed so I will start a new one with the same issue (same title)

Firmware is the latest version:
[image]

Factory reset has been done.

Tried with different SIM card, same issue

Running the same application and scenario in our local test environment works without issue.

We will visit our customer with a new RUT955 shortly to test if this works better. Any suggestions what to examine while there?

Please do not close this issue until its resolved.