Lorawan Gateway Gateway Offline in ChirpStack Web UI After Connecting to Local MQTT Broker

ChirpStack (v4)
1

Description:

I have configured a ChirpStack LoRaWAN setup using a Raspberry Pi and a Seeed WM1302 gateway module. Initially, the LoRaWAN packets were successfully received and verified in the ChirpStack Web UI.

To integrate with a Local PC running a Mosquitto MQTT broker, I modified the server address in the ChirpStack configuration files as follows:
Configuration Changes:
ChirpStack MQTT Integration Configuration:

$ sudo nano /etc/chirpstack/chirpstack

[integration.mqtt]
server = “tcp://192.168.0.101:1883”
marshaler = “json”

$ sudo systemctl restart chirpstack

ChirpStack Gateway Bridge Configuration:

$ sudo nano /etc/chirpstack-gateway-bridge/chirpstack-gateway-bridge.toml

[integration.mqtt]
[integration.mqtt.auth.generic]
server = “tcp://192.168.0.101:1883”
marshaler = “json”

$ sudo systemctl restart chirpstack-gateway-bridge

Issue:

After modifying the MQTT integration to use the Local PC’s Mosquitto broker, I can successfully receive LoRaWAN packets and verify them using Wireshark. However, in the ChirpStack Web UI, the gateway status appears as offline.
Query:

Does modifying the MQTT integration to connect to a Local PC cause the Web UI to show the gateway as offline?
Are any additional steps required to ensure that the gateway status remains online in the Web UI while using an external MQTT broker?

Any guidance or recommendations would be greatly appreciated.

Best regards,
Sandeep S

2

So you want your entire Chirpstack setup to run off of this additional MQTT broker? If so you will need to configure Chirpstacks MQTT backend, which is located in the regional.toml files, the address you configured in your Chirpstack.toml is actually for the integration events (forwarding the MQTT events to a different broker after chirpstack has processed them) rather than the backend for Chirpstack itself.

1 Like
3

Hi Liam,
Thank you for your support. i changed the server IP address in the regional.toml , then it worked.