Zigbee - EndDevice is removed from the network on reconnection

[sjf]

Hi,

We have been working with a coordinator and an end device based on nRF52840 with nRF5_SDK_for_Thread_and_Zigbee_v4.0.0_dc7186b

Both devices are Zigbee 3.0 and implement Install Codes.

The End Device is added and joins successfully to the network. Then it requests some data to the coordinator and starts reporting periodically.

Every time the device is reconnected for some time (i.e. 1 hour), the coordinator firstly allows it to join but after some seconds it removes it from the network (find attached the Wireshark capture with the reconnection log)

Is this related to TCLK? Which is the best way to avoid this?

We checked that EndDevice was able to be added and joined again after this issue by repeating the same initial steps.

Thanks in advance,

Santiago

log_tclk_issue_20200807.pcapng,

[sjf]

Hi, it seems that the EndDevices configured its Install Code only when it was not joined to the network. By adding it on every startup (always) seems to be the solution to that issue. Thanks anyway

[WestCoastDaz]

Did your coordinate restart at all?