LHT52 connectivity issue with gateway. No data on TTN

Hello everyone,
I am facing connectivity issues with lht52 with the gateaway (although the gatway seems online) but there is no data on TTN, the device is operating in the Europe region, connection by OTAA and has been updated to the latest firmware version. All the device configurations (DevEUI, AppEUI and device-id) on TTN is accurate. Initially, it successfully connects to the nearby LoRaWAN gateway and processes join requests; however, it frequently fails to send uplink data messages. After some time, it completely stops transmitting data to The Things Network (TTN).

I have also tested the device in debugging mode using USB to TTL and configure it on PC, but the problem remains unresolved. Given that this issue occurs repeatedly, I would appreciate your assistance in resolving it.
Thank you in advance.

Details, details, details! Please search for other ‘problem posts’ for the kind of data, info, settings, specifications, firware versions, regional settings, device/console/gw config data, seril port listings etc. that might allow Forum volunteers to even begin to help you identify what/where might the issue be… otherwise its a game of 20 questions and crystal ball gazing :wink: