Arduino MKR NB 1500 with http or mqtt

Using Arduino Programming Questions
1

Dear Arduino-fellows,

I would like to use the Arduino MKR NB 1500 along with a vodafone SIM card. It connects without any troubles to the vodafone network. However, it is not possible to connect to an http or mqtt server (please see code below).

I am using following this code:

// NB-IoT to Cloud v0.0
// 11.09.2019
// Uses some commands found at https://create.arduino.cc/projecthub/voske65/arduino-nb-iot-with-sim7020-and-t-mobile-027f8f

#include <SoftwareSerial.h>
#define TIMEOUT 200        // AT-command timeout in 100ms  -> 200=20sec
#define COMMANDMAX 1024
const int SleepPin = 6;
const int PowerPin = 7;
char SimError[] = "SIM **Error ";
char SimTimeout[] = "SIM **Timeout ";
char MyIp[16];
char MyCicc[24];
int TimeOut = TIMEOUT;
SoftwareSerial mySerial(2,3);

char simresult[COMMANDMAX];

const char* NBstart[] = {
  "ATZ",
  "AT+CFUN=0",
  "AT+CREG=2",
  "AT*MCGDEFCONT=\"IP\",\"nb.inetd.gdsp\"",
  "AT+CFUN=1",
  
  "AT+COPS=1,2,\"26202\"",  // sign up to Vodafone DE
  "AT+CGCONTRDP",
  "AT+CSQ",
  "\0"  // end script with 0x00
};

//const char* NBopensocket[] = {
//  "AT+CSOC=1,2,1",
//  "AT+CSOCON=0,15683,\"XXX\"", // T-Mobile Server socket 0
//  "\0"     // end script with 0x00
//};

const char* NBopensocket[] = {
  "AT+CSOC=1,2,1",
  "AT+CSOCON=0,15683,\"XXX\"", // T-Mobile Server socket 0
//  "AT+CSOCON=0,80,\"https://XXX/addMessage\?text=XXX\"",
  "\0"     // end script with 0x00
};

const char* NBclosesocket[] = {
  "AT+CSODIS=0",
  "AT+CSOCL=0",
  "AT+CGACT=0,1",
  "\0"     // end script with 0x00
};

const char* NBhelloworld[] = {
  "AT+CSOSEND=0,0,\"Hello World!\"",
  "\0"     // end script with 0x00
};


int runscript(const char** scrpt) {
  int t = 0;
  int s = 1;
  //Serial.println("\n** SimScript:");
  while ( strlen( scrpt[t]) > 1) {
    s = writecommand(scrpt[t]);
    delay(1000);
    if ( s == 1 ) ++t;
    else break;
  }
  return (s);
}

int writecommand(const char* cmd) {
  char c = 0;
  int t = 0, n = 0;
  simresult[0] = 0;
  mySerial.flush();
  mySerial.print(cmd); mySerial.print('\r'); mySerial.print('\n');
  while ( n <= TIMEOUT ) {
    if (mySerial.available()) {
      c = mySerial.read();
      simresult[t] = c; simresult[++t] = 0;
      Serial.write(c);
    }
    else {
      delay(100);
      n++;
    };
    if ( (t > 3) &&  (  ( (simresult[t - 4] == 'O') && (simresult[t - 3] == 'K') && (simresult[t - 2] == '\r') && (simresult[t - 1] == '\n') )  ||  (  (simresult[t - 4] == 'O') && (simresult[t - 3] == 'R') && (simresult[t - 2] == '\r') && (simresult[t - 1] == '\n')  )  ) )  break;
  }
  if (n >= TIMEOUT) {
    Serial.println(SimTimeout);
    return (-1);
  }
  else {
    if ( (simresult[t - 4] == 'O') && (simresult[t - 3] == 'R') ) {
      Serial.println(SimError);
      return (0);
    }
    else return (1);
  }
}

void setup()
{
  mySerial.begin(19200);
  Serial.begin(19200);
  delay(1000);
  runscript(NBstart);
  delay(200);
  runscript(NBopensocket);
}

void loop()
{
  if (mySerial.available())
    Serial.write(mySerial.read());
  if (Serial.available())
    mySerial.write(Serial.read());

  //runscript(NBopensocket);
  //delay(200);
  runscript(NBhelloworld);
  delay(200);
  //runscript(NBclosesocket);
  delay(500);
}

Do you have any idea to fix this?
This also didn't help me:

Thank you!

2