httppost: kriegt keine verbindung

1public void SendToServer(String a, String b, String c, String d) {
2
3 HttpClient httpclient = new DefaultHttpClient();
4 HttpPost httppost = new HttpPost(URL);
5
6 try {
7
8 List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(4);
9 nameValuePairs.add(new BasicNameValuePair("a", a));
10 nameValuePairs.add(new BasicNameValuePair("b", b));
11 nameValuePairs.add(new BasicNameValuePair("c", c));
12 nameValuePairs.add(new BasicNameValuePair("d", d));
13 httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
14
15 HttpResponse response = httpclient.execute(httppost);
16
17 } catch (Exception e) {
18 ChangeStatus("Sent Error: " + e.getMessage());
19 }
20
21
22 }

1<uses-permission android:name="android.permission.INTERNET" />
2 .....