RAK3272 Network Retention with Power Cycle?

LPWAN Nodes
1

Does the RAK3272s always lose network connection when it is power cycled?

I’m using the RAK3272s with AT commands. After successfully JOINing and SENDing data and confirming successful send, after a while of no activity, I power off the RAK3272s. I am using the AT+LPMLVL=2 mode to achieve low power operation between transmissions. Upon reapplying power (after even a brief power down), a check of network join status ( AT+NJS=?) always indicates no network is joined. This need to rejoin causes some delay and additional battery consumption.

Thanks for guidance!

2

After a power cycle, the RAK3172 has to rejoin the network. It does not save the former network status, AppSKey or NwSKey.

1 Like
3

@beegee thank-you for confirming the impact of power cycle on the RAK3272s.

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