No repeater work

[Marckcity]

i was very happy when i found your github site because i wanted to increase the range between my lora gateway and my sensor nodes. i loaded your sketch onto my arduino pro mini 3.3v and everything was ok in the serial monitor, see pictures. Of course, I had adjusted the frequency, spreading factor, bandwidth, coding rate, and sf level beforehand, but no signal is received and sent on. what am I doing wrong? do you have to adjust iwas or is everything that is received on the set frequency also 1 to 1 forwarded? or is the repeater waiting for a special character at the beginning of every message received? Greetings from Germany

[Marckcity]

Update:

sometimes it works but only every 7 to 20 signal get received and then not every received signal get transmit :/ do you have a idea what i can do ? regards