Rashmitha Kotian 1

• asked Nov 28, 2025

#1. ERROR chirpstack::uplink: Deduplication error error=join-request payload must be exactly 18 bytes

Hi Team, I’m seeing an error in the logs. ERROR chirpstack::uplink: Deduplication error error=join-request payload must be exactly 18 bytes docker logs chirpstack-docker_chirpstack_1 output: {code...} Could someone help me understand what m...

troubleshooting devices chirpstack

0 votes

1 answers

157 views

Roussillat Thibaud 1

• asked Nov 27, 2025

Topic template in MQTT integration for Chirpstack Gateway Bridge

Hi, We are migrating from Chirpstack v3 to Chirpstack v4 and we need Chirpstack Gateway Bridge to handle UDP Packet from Gateways (the next stage is to embed MQTT forwarder in the gateways). We faced some difficulties to configure the gatew...

configuration chirpstack-gateway-bridge

0 votes

1 answers

166 views

Ruwa Tech 3

• asked Nov 26, 2025

Chirpstack FUOTA redundancy fragments implementation

I'm trying to implement fuota on an MCU using chirpstack. I've implemented upto downloading fragments & redundancy fragments. Now I'm stuck at generating missing fragments using already receieved fragments & redundancy f...

devices chirpstack fuota

0 votes

2 answers

194 views

Sushant Patil 1

• asked Nov 26, 2025

Long-range LoRa communication not working after building custom ChirpStack Gateway OS (with USB LTE drivers)

I have built a custom ChirpStack Gateway OS image with additional USB LTE modem drivers for providing internet connectivity through a USB cellular dongle. The USB interface comes up correctly, and the gateway can access the internet (e.g., ...

chirpstack-os

0 votes

3 answers

207 views

Marius Tamulis 1

• asked Nov 24, 2025

Gateway stays "OFFLINE" in UI despite stats received over MQTT

Hello, I am currently integrating a Milesight UG65 gateway with ChirpStack v4, and I have encountered an issue I can’t fully resolve. The problem: The gateway remains OFFLINE in the ChirpStack UI, even though the server clearly receives gat...

chirpstack basics-station chirpstack-gateway-bridge

0 votes

1 answers

174 views

Husam 3

• asked Nov 23, 2025

WebUI Default Number of displayed Records

Dears, Wouldn't it be nice to have these defaults in the chirpstack.toml file instead of being hardcoded (Chirpsatck v4.15.0)? {code...}

configuration chirpstack

0 votes

2 answers

99 views

Luca Pescatore 1

• asked Nov 21, 2025

ConfirmedDataUp, how to proceed?

I am testing a device to send some data to my ChirpStack server, I am getting the following JSON with f_type ConfirmedDataUp. Now I do not know what should I do and if the data are properly received. What should I do? {code...}

devices chirpstack

0 votes

3 answers

193 views

Marco Ratto 1

• asked Nov 21, 2025

Handle join-request error error=rx_info_set is empty

Hi, I'm trying to configure Lorawan roaming beetween Chirpstack and Actility. I set the configuration according the documentation found online but when a device try to execute a Join Request, Chirsptack wrote this error message: {code.....

troubleshooting chirpstack

0 votes

2 answers

149 views

Igor Pereverzev 9

• asked Nov 20, 2025

Adding new region configuration

How to add unsupported region configuration - for example KZ865? I know frequencies of that region. Or I just need to edit any supported config frequencies?

chirpstack-concentratord configuration chirpstack regions

0 votes

2 answers

229 views

Omnava 1

• asked Nov 20, 2025

MIC of join-request is invalid (code:"UPLINK_MIC")

I have onboarded two nodes. One is connected successfully, while the other is showing a key error. I have checked multiple times, its correct, but here it is showing this issue. level:"ERROR" code:"UPLINK_MIC" description:&#...

troubleshooting devices chirpstack

0 votes

1 answers

305 views