Hello, please ask a question, in Class C mode, TTN(NS) sends data too early(NS displays an error message: Failed to transmit downlink Downlink transmission failed with result Too EARLY), resulting in packet loss problems. Why? Thank you! [5png]

Everyone, please analyze the cause of the problem and give a solution. Very grateful.

See gateway settings > lorawan options > schedule any time delay [Screenshot_20220704-225455_Chrome] Detailed discussions here [image] RAK2245 - Downlink rejected LPWAN Developer Gateways / Concentrators …

Can you tell me more about that? What is said here is a bit difficult to understand, and I hope what can be said makes me understand better. I also have a choice of the content of the pictures you show.

Can you find the Gateway settings > Lorawan Options > Schedule any time delay setting in the TTN UI? Try different values, you can choose bigger or smaller delays to adjust the Internet packet time from network to gateway. Would try a larger value.

Thank you！I ask one more question, when I use ClassC mode, after successfully joining the gateway, the data sent from TTTN cannot be received (the gateway normally receives data from TTN), and the device needs to send a piece of data before it can receive The Class C mode can be received normally. W…

After join an uplink packet is usually needed to confirm that the join accept has been recieved and the session keys are correct.

How should I know first that my device exited the gateway. For example, the gateway is out of power, or the gateway is malfunctioning. What I know now is that I can send an AT command LinkCheck message to determine the status of the network connection, but I want to know it first.

Please do not hijack threads or double post……it splits volunteers efforts. See earlier response to your near identical post. [image] Device network connection status Hardware When I use the SX1262, how should I know first that my device exited the gateway. For example, the…

[image] orange_zouxiangcheng: Failed to transmit downlink Downlink transmission failed with result Too EARLY I had exactly the same message. (Failed to transmit downlink Downlink transmission failed with result Too EARLY) I got even 4 messages always in the same seconds after a telegram. S…

Why does this problem appear too early?

TTN Network and Services

jreiss (Jason Reiss) July 5, 2022, 4:00am 3

See gateway settings > lorawan options > schedule any time delay

Detailed discussions here

And here