SIM7600 not always sending data to web server

I'm having a problem with the sim7600.

First of all I never see the return codes from the AT commands

Second  not sure the leds that are blicking

I take it the 

   red one is power on

  Not sure what the one that is next to the red one that goes blue on then off

  The blue onee that blicks I take it meansthe sim card iss connected

I can send an SMS with no problem with the test commands in the documentation but every once in a while the code below sends data to the web server and after one time if I recompile the code nothing happens.

I have an external power supply connected to the ATMega2560 so I don't think it is due to not enough power.

Does anybody see what is missing to send the data using the 4g methods

My code is as follows

--------------------------------------------------------------------------------

#include <stdio.h>
#include <string.h>
#include <DHT.h>
#include <SoftwareSerial.h>
SoftwareSerial SIM7600(7, 8); // RX, TX
#define DEBUG true
#define LTE_RESET_PIN 6
#define LTE_PWRKEY_PIN 5
#define LTE_FLIGHT_PIN 7
#define Sensor_PIN 3  //D3-DHT11
 
//DHT  dht(Sensor_PIN,DHT11);
 
void setup()
{
 

   Serial.begin(115200);
   //while (!Serial)
   {
     ; // wait for Arduino serial Monitor port to connect
   }
   SIM7600.begin(115200);
  
   pinMode(LTE_RESET_PIN, OUTPUT);
   digitalWrite(LTE_RESET_PIN, LOW);
  
   pinMode(LTE_PWRKEY_PIN, OUTPUT);
   digitalWrite(LTE_RESET_PIN, LOW);
   delay(100);
   digitalWrite(LTE_PWRKEY_PIN, HIGH);
   delay(2000);
   digitalWrite(LTE_PWRKEY_PIN, LOW);
    
   pinMode(LTE_FLIGHT_PIN, OUTPUT);
   digitalWrite(LTE_FLIGHT_PIN, LOW);//Normal Mode
    
   delay(5000);
    
/* 
   sendData("AT+CCID\r", 3000, DEBUG);
   sendData("AT+CREG?\r", 3000, DEBUG);
   sendData("AT+CGATT=1\r", 1000, DEBUG);
   sendData("AT+CGACT=1,1\r", 1000, DEBUG);
   sendData("AT+CGDCONT=1,\"IP\",\"TM\"\r", 1000, DEBUG);
*/
                                                                                                                             
   sendData("AT+CCID", 3000, DEBUG);
   sendData("AT+CREG?", 3000, DEBUG);
   sendData("AT+CGATT=1", 1000, DEBUG);
   sendData("AT+CGACT=1,1", 1000, DEBUG);
   sendData("AT+CGDCONT=1,\"IP\",\"TM\"", 1000, DEBUG);
   sendData("AT+CIPSTART=\"TCP\",\"Webpage.de\",\"80\"", 2000, DEBUG); 
   Serial.println("4G HTTP Test Begin!");
 
  /* dht.begin(); */
   delay(1000);
       //-----------HTTP---------------------
   String http_str  = "AT+HTTPPARA=\"URL\",HTTP://www.webpage.de/data2mysql.php?key=test&ID=9999&A0=220&A1=300&A2=1024&A3=24&A4=26&A5=10&A6=14&A7=14&A8=28&A9=0&A10=7&A11=0&A12=0";
   
   sendData("AT+HTTPINIT", 2000, DEBUG);
   sendData(http_str, 2000, DEBUG);
   sendData("AT+HTTPACTION=0", 3000, DEBUG);
   sendData("AT+HTTPTERM", 3000, DEBUG);
   delay(5000);   
  
}
 
void loop()
{
  /* //--------Get temperature and humidity-------------
   float h = dht.readHumidity();
   float t = dht.readTemperature();
    Serial.print("Humidity: ");
    Serial.print(h);
    Serial.println("%");
    Serial.print("Temperature: ");
    Serial.print(t);
    Serial.println("*C");
    delay(1000);
 */

}
 
bool moduleStateCheck()
{
   int i = 0;
   bool moduleState = false;
   for (i = 0; i < 5; i++)
   {
       String msg = String("");
       msg = sendData("AT", 1000, DEBUG);
       if (msg.indexOf("OK") >= 0)
       {
           Serial.println("SIM7600 Module had turned on.");
           moduleState = true;
           return moduleState;
       }
       delay(1000);
   }
   return moduleState;
}
 
String sendData(String command, const int timeout, boolean debug)
{
 String response = "";
 SIM7600.println(command);
 Serial.print("In Send command ");
 Serial.println(command);
 if (debug)
 {
   Serial.print(response);
 }
  
 long int time = millis();
 while ( (time + timeout) > millis())
 {
   while (Serial1.available())
   {
     char c = Serial1.read();
     response += c;
   }
 }
 if (debug)
 {
   Serial.print(response);
 }
 return response;
}