V4 server fell down - restart and don't receive any messages

chirpstack v4 server fell down, restart and don’t receive any mensajes from any device. Any idea ? I don’t have access a lot of device for reset anfo force rejoin.

Redis down may lose the session keys of the nodes.

Either recover the session keys of redis.
Or restart nodes.
Or the nodes will auto rejoin if they have auto rejoin feature.

Hi there,
As @datnus said, the system may have lost the session keys. If you see the data frames in the logs of the gateway, this may be what happened.
By default, REDIS stores data in RAM, so in case of restart, data is (totally) lost. That is why you must configure data persistance in your REDIS instance, and a periodic backup of the rbd file in a separate location is recommended.
Hope this helps,

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