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tclk exchange fails when trying to rejoin different network #76

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@rikkertkoppes

I am trying to create a thermostat device that I can add to my plugwise installation. I started with a rudimentary setup and was able to connect to the plugwise zigbee network. After that I finetuned the setup, reflashed a few times and added it to my homeassistant zigbee network to be able to inspect it and compare to other devices from plugwise (specifically, a Tom smart radiator valve).

I now have trouble adding the device to the plugwise network again, it does so briefly and then reboots after the following message:

[20:47:01]ZB_TRACE_LOG[0]: secur/apsme_secur.c:658    received link key identical to provisional link key - drop packet and fail tclk exchange

I am not sure whether this is an issue with my device (it is an esp32 c6). I did erase the flash using esptool to try to delete all remaining persisted data, but that did not help. It may be an issue with plugwise (remembering previous link keys) as well, but I am not sure how to verify this.

Does anyone has any insights or pointers on how I can proceed debugging this issue?

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