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How to connect different device use Contiki UDP Sub-GHz

PeterChen
Associate

I have 1 Gateway and 2 devices(A and B).

I use example UDP-sender and UDP-receiver to try implement my project.

The gateway(Sender) with 2 devices(Receiver) communication is OK use Sub-Ghz.

But if my gateway first communicate device A then I change IP address and try communicate device B it's doesn't work, my device B can trigger interrupt but the unicast-receiver doesn't work.

Where am i wrong?

thanks everyone.​

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