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#205045
I am not successful in connecting 2 LTE CAT M1/NB-IoT Shield to a working operator using a Hologram SIM in Berlin Germany

Verified the SIM is active, I sent and received SMS using the SIM in a mobile device

The message in Arduino Serial is
"Did not find an operator. Double Check SIM and antenna, reset and try again or try another network"

have tried reset
#205102
Hello, and thanks for your post!

It sounds like you might be in a poor reception area where the shield has difficulty getting a cell signal. You might try a different location or going outside to see if you get a signal there. The antenna on the shield is OK but not great at getting a signal in a weak signal area.

Another option would be to try an external antenna.