Payload not send to application at TTN

[delbo85]

Has attached an UNO with the RN2483 module, and the ACTIVATION packet is received by the application, but not able to send payload messages to the application. Using myLora.tx(string), but nothing is received by the application or the gateway.
Please help :)

[jpmeijers]

Are you using ABP or OTAA? I guess the latter as you are talking about an activation packet. Do you mind sharing your code so that we can have a look at it?

[delbo85]

I have fixed it thanks. It will not send using port 1. Which means had to change "mac tx cnf 1 " to "mac tx cnf 4", then it worked :)