In my use case multiple devices are close to each other (ca. 5 meters). Once every hour the devices are supposed to send some data. However only one device at a time is successfully able to send data. All devices use the BG96 module by Quectel. I assume there is some conflict between the devices that hinders them from sending data. What are possible causes for this issue?
They use different connect IDs, but the same PDP context ID. However as far as I understand the PDP context ID is an internal reference for the cellular module and should not interfere with other devices context ID.
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