Hi, I got to experience on RAK serial port tool no response from RAK811 after few minutes of connections. I have to reset RAK811 to reinstate serial connection.
I am using WisNode-Lora (WisKey) and Lora Breadboard with USB serial adaptor and both have the same problems. When RAK811 does not accept any AT command, it still sends and receives messages to loraWan, just stop serial port communication. Also, RAK811 keep receiving an empty message, don’t know why?