MQTT identifier is occupied

Technical Subjects Software General Function
1

this case not happen always
but whren it’s happen I have to reset the moduel then it’s work

if the MQTT identifier is occupied
I try try to close the network ,and to disconnect the channel
but it’s not work
I have to power off the module then turn it on

I use these commands

Open a Network for MQTT Client

    uart_puts(UART_ID, broker);
    uart_puts(UART_ID, "\",");
    uart_puts(UART_ID, port);
    uart_puts(UART_ID, "\r");

Close a Network for MQTT Client

duart_puts(UART_ID, "AT+QMTCLOSE=0\r");

Connect a Client to MQTT Server

sprintf(temp_buffer, "AT+QMTCONN=0,\"\"[,\"%s\"[,\"\"]]\r\n", Token); 
uart_puts(UART_ID, temp_buffer);

Disconnect a Client to MQTT Server

uart_puts(UART_ID, "AT+QMTDISC=0\r");

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2

If this event is probabilistic, you may need to grab the module’s debug log for analysis