Once customers begin using the full SE security suite, complete with ECC/CBKE support, they often observe that after joining a network and doing key establishment, they encounter problems if they leave that network and then later attempt to join it again.
This is normal SE network behavior that has to do with the negotiation of a unique link key upon joining…
You initially come into the PAN with a preconfigured trust center link key between your joining device (we’ll call it a PCT in this explanation, but it could be any SE device [PCT, IPD, Smart Appliance, Meter, etc]) and the ESP, a
