E220 strange communication errors

Hi Renzo, I'm using encryption, but maybe I'm doing something wrong. I have to send commands from the gateway to the nodes in broadcast, and on 16 nodes only node 1 receives them. To transmit:

rsTX = e220ttlTX->sendBroadcastFixedMessage(CHANNEL, message);
    printLocalTime();
    log_i("Invio: %s, %s", message.c_str(), rsTX.getResponseDescription());

To receive on nodes:

String input = "";
    if (e220ttl->available() > 1)
    {
        Serial.println("Ho ricevuto un messaggio:");
        // read the String message

        ResponseContainer rc = e220ttl->receiveMessageRSSI();

        // Is something goes wrong print error
        if (rc.status.code != 1)
        {
            Serial.println(rc.status.getResponseDescription());
        }
        else
        {
            // Print the data received
            Serial.println(rc.status.getResponseDescription());
            input = rc.data;
            Serial.print("RSSI: ");
            Serial.println(rc.rssi, DEC);
            RSSI = rc.rssi, DEC;
        }

        Serial.print("Stampo il messaggio che ho ricevuto: ");
        Serial.println(input);
        return input;
    }
    return input;

I built a Gateway with two modems, one for Transmitting and one for Receiving and I configure them like this:

initModemTX();

    ResponseStructContainer c = e220ttlTX->getConfiguration();
    Configuration configuration = *(Configuration *)c.data;

    configuration.ADDL = ADDLTX;
    configuration.ADDH = 0x00;    // MAX 0xFF=255
    configuration.CHAN = CHANNEL; // 0x19;

    configuration.SPED.uartBaudRate = UART_BPS_9600;
    configuration.SPED.airDataRate = AIR_DATA_RATE_011_48;
    configuration.SPED.uartBaudRate = UART_BPS_9600;
    configuration.SPED.uartParity = MODE_00_8N1;

    configuration.OPTION.subPacketSetting = SPS_200_00;
    configuration.OPTION.RSSIAmbientNoise = RSSI_AMBIENT_NOISE_DISABLED;
    configuration.OPTION.transmissionPower = POWER_22;

    configuration.TRANSMISSION_MODE.enableRSSI = RSSI_ENABLED;
    configuration.TRANSMISSION_MODE.fixedTransmission = FT_FIXED_TRANSMISSION;
    configuration.TRANSMISSION_MODE.enableLBT = LBT_DISABLED;
    configuration.TRANSMISSION_MODE.WORPeriod = WOR_2000_011;

    configuration.CRYPT.CRYPT_H = CRYPH;
    configuration.CRYPT.CRYPT_L = CRYPL;

    ResponseStatus rs = e220ttlTX->setConfiguration(configuration, WRITE_CFG_PWR_DWN_SAVE);
    c.close();
    delay(100);
    e220ttlTX->setMode(MODE_1_WOR_TRANSMITTER);
    // e220ttlTX->setMode(MODE_0_NORMAL);

    initModemRX();
    delay(200);
    ResponseStructContainer c2 = e220ttlRX->getConfiguration();
    Configuration configuration2 = *(Configuration *)c2.data;

    configuration2.ADDL = ADDLRX;
    configuration2.ADDH = 0x00;    // MAX 0xFF=255
    configuration2.CHAN = CHANNEL; // 0x19;

    configuration2.SPED.uartBaudRate = UART_BPS_9600;
    configuration2.SPED.airDataRate = AIR_DATA_RATE_010_24;
    configuration2.SPED.uartBaudRate = UART_BPS_9600;
    configuration2.SPED.uartParity = MODE_00_8N1;

    configuration2.OPTION.subPacketSetting = SPS_200_00;
    configuration2.OPTION.RSSIAmbientNoise = RSSI_AMBIENT_NOISE_DISABLED;
    configuration2.OPTION.transmissionPower = POWER_22;

    configuration2.TRANSMISSION_MODE.enableRSSI = RSSI_ENABLED;
    configuration2.TRANSMISSION_MODE.fixedTransmission = FT_FIXED_TRANSMISSION;
    configuration2.TRANSMISSION_MODE.enableLBT = LBT_DISABLED;
    configuration2.TRANSMISSION_MODE.WORPeriod = WOR_2000_011;

    configuration2.CRYPT.CRYPT_H = CRYPH;
    configuration2.CRYPT.CRYPT_L = CRYPL;

    ResponseStatus rs2 = e220ttlRX->setConfiguration(configuration2, WRITE_CFG_PWR_DWN_SAVE);
    c2.close();

and the node configuration when I Receive:

ResponseStructContainer c = e220ttl->getConfiguration();
    Configuration configuration = *(Configuration *)c.data;
    configuration.ADDL = ID_NODE;
    configuration.ADDH = 0x0; // MAX 0xFF=255
    configuration.CHAN = CHANNEL;

    configuration.SPED.uartBaudRate = UART_BPS_9600;
    configuration.SPED.airDataRate = AIR_DATA_RATE_011_48;
    configuration.SPED.uartBaudRate = UART_BPS_9600;
    configuration.SPED.uartParity = MODE_00_8N1;

    configuration.OPTION.subPacketSetting = SPS_200_00;
    configuration.OPTION.RSSIAmbientNoise = RSSI_AMBIENT_NOISE_DISABLED;
    configuration.OPTION.transmissionPower = POWER_22;

    configuration.TRANSMISSION_MODE.enableRSSI = RSSI_ENABLED;
    configuration.TRANSMISSION_MODE.fixedTransmission = FT_FIXED_TRANSMISSION;
    configuration.TRANSMISSION_MODE.enableLBT = LBT_DISABLED;
    configuration.TRANSMISSION_MODE.WORPeriod = WOR_2000_011;

    configuration.CRYPT.CRYPT_H = CRYPH;
    configuration.CRYPT.CRYPT_L = CRYPL;

    ResponseStatus rs = e220ttl->setConfiguration(configuration, WRITE_CFG_PWR_DWN_SAVE);
    c.close();

    e220ttl->setMode(MODE_2_WOR_RECEIVER);
    
    delay(100);

and when transmit to the gateway:

e220ttl->setMode(MODE_0_NORMAL);
    delay(100);
    ResponseStructContainer c = e220ttl->getConfiguration();
    Configuration configuration = *(Configuration *)c.data;

    configuration.ADDL = ID_NODE;
    configuration.ADDH = 0x0;     // MAX 0xFF=255
    configuration.CHAN = CHANNEL; // 0x19;

    configuration.SPED.uartBaudRate = UART_BPS_9600;
    configuration.SPED.airDataRate = AIR_DATA_RATE_010_24;
    configuration.SPED.uartBaudRate = UART_BPS_9600;
    configuration.SPED.uartParity = MODE_00_8N1;

    configuration.OPTION.subPacketSetting = SPS_200_00;
    configuration.OPTION.RSSIAmbientNoise = RSSI_AMBIENT_NOISE_DISABLED;
    configuration.OPTION.transmissionPower = POWER_22;

    configuration.TRANSMISSION_MODE.enableRSSI = RSSI_ENABLED;
    configuration.TRANSMISSION_MODE.fixedTransmission = FT_FIXED_TRANSMISSION;
    configuration.TRANSMISSION_MODE.enableLBT = LBT_DISABLED;
    configuration.TRANSMISSION_MODE.WORPeriod = WOR_2000_011;

    configuration.CRYPT.CRYPT_H = CRYPH;
    configuration.CRYPT.CRYPT_L = CRYPL;
    ResponseStatus rs = e220ttl->setConfiguration(configuration, WRITE_CFG_PWR_DWN_SAVE);
    c.close();
    delay(100);