Hi everyone,
I have a simple Class-A network and all things were well and I could get uplinks and send downlinks to end-nodes. but after a few days, I can’t get the downlink in the end-nodes. all things are fine in chirpstack, chirpstack-gateway-bridge, and gateway packet_forwarder and I see the downlink log in the gateway, but I can’t receive any downlink in all end-nodes. I didn’t change any config and I’m confused.