Dragino LHT52 doesn't join to the network

ytzlax
Tue, 13 Jan 2026 09:21:40 +0000
Dragino

Hi all,

Over the last few months, I’ve been learning about LoRa, LoRaWAN, and TTN, and it’s been very exciting.

I bought a Dragino LHT52 sensor and registered it in the TTN Console and physicaly installed it in Amsterdam-Zuid.
There is a gateway located about 700 meters away.

The problem:
When I insert the batteries, the LED sequence is green → red → blue → green, which seems correct.
However, the final green LED should stay on for about 5 seconds to indicate that the join was successful, but this does not happen.

In the TTN Console, I do not see any live data, and in the session information I get the message:
“This device has not joined the network yet.”

Gateway details:

Name: Sunflower

ID: eui-0000001ec03afb86

EUI: 0000001EC03AFB86

Network: NS_TTS_V3://ttn@000013

Location: 52.3249, 4.8729

Altitude: 10 m

Sensor details:

Frequency plan: Europe 863–870 MHz (SF9 for RX2 – recommended)

LoRaWAN version: 1.0.3

Regional Parameters version: RP001 Regional Parameters 1.0.3 revision A

Network server address: eu1.cloud.thethings.network

Application server address: eu1.cloud.thethings.network

Join server address: eu1.cloud.thethings.network

Activation mode: OTAA

What I tried:

Read the TTN documentation

Read the Dragino documentation

Read other relevant forum posts

Google searches

Asked ChatGPT

Verified that the AppEUI, DevEUI, and AppKey in the TTN Console match the values on the sensor package

Reset the sensor

Removed and reinserted the batteries

Does anyone have any idea what could be the issue?

Thanks.

6 posts - 3 participants