GET - http request not working?

below is the complete code. I have made a new sketch with the air pressure value only - just to keep it simple. It's still not working.
I get the correct reading / values at the serial interface - only the GET request is not working.

How have you verified that the request is being cut? Did you check the server logs or did you use a network monitor/sniffer?

if you have this complete line in the code, it becomes a hyperlink and opens at the webbrowser but everything was cut off behind & - see my first post.
client.print("GET http://192.168.178.21/config/xmlapi/statechange.cgi?ise_id=15324&new_value=1005 HTTP/1.0");

Is there any way to monitor the GET Request in order to see what the arduino is send to the server?

#include <Wire.h>
#include <SPI.h>
#include <Ethernet.h>
#include <BMP085.h>

// I2C
BMP085 dps = BMP085();      // Digital Pressure Sensor 
long Temperature = 0, Pressure = 0, Altitude = 58800;

// Enter a MAC address for your controller below.
// Newer Ethernet shields have a MAC address printed on a sticker on the shield
byte mac[] = { 0x90, 0xA2, 0xDA, 0x0D, 0x2D, 0xF9 };
IPAddress server(192,168,178,21);

// Initialize the Ethernet client library
// with the IP address and port of the server 
// that you want to connect to (port 80 is default for HTTP):
EthernetClient client;

void setup() {
 // Open serial communications and wait for port to open:
  Serial.begin(9600);
  // start the Ethernet connection:
  if (Ethernet.begin(mac) == 0) {
    Serial.println("Failed to configure Ethernet using DHCP");
    // no point in carrying on, so do nothing forevermore:
    for(;;)
      ;
  }
  // give the Ethernet shield a second to initialize:
  delay(1000);
  Serial.println("connecting...");

  // if you get a connection, report back via serial:
  if (client.connect(server, 80)) {
    Serial.println("connected");
  } 
  else {
    Serial.println("connection failed");
  }

// start I2C für BMP085
  Wire.begin();
  delay(1000);
  dps.init(MODE_ULTRA_HIGHRES, 58800, true);  // 588 meters, true = using meter units
  
}

void loop()
{
  // Get Altitude and air pressure
  dps.getPressure(&Pressure);
  dps.getAltitude(&Altitude);
  delay(2000);
 
  Serial.print("  Alt(cm):");
  Serial.print(Altitude);
  Serial.print("  Pressure(mbar):");
  Pressure = Pressure / 100;
  Serial.println(Pressure);  
    
  client.print("GET /config/xmlapi/statechange.cgi?ise_id=15324&new_value=");
  client.print(Pressure);
  client.println();

  }