Question: i get a strange error message when i try to start an url connection.
here´s the log output:

```
     E/admarvelservice( 2366): postString: &site_id=14488&partner_id=ef8a30b841b36346& timeout=5000&version=1.5&language=java&format=android&sdk_version=2.1.3&sdk_version_date=2011-08-08&device_model=Nexus+S&device_name=GRJ22&get_cached_ads=true&device_systemversion=2.3.5&resolution_width=480&max_image_width=480&resolution_height=800&max_image_height=800&device_os=Android&target_params=appv%3D%3ES%7C%7Cla%3D%3Ede%7C%7Cco%3D%3EAT%7C%7Cscreenorient%3D%3Ep%7C%7Cappvn%3D%3E3.4.0%252F%7C%7Cosv%3D%3E2.3.5

     D/admarvelservice( 2366): Error: java.net.ConnectException: ads.admarvel.com/127.0.0.1:80 - Connection refused

```

anybody an idea whats the problem here?
thanks.

EDIT: how i connect:

```
URL myURL;
try {
    myURL = new URL(_url);
    m_ucon = myURL.openConnection();
    m_ucon.setConnectTimeout(8000);

} catch (Exception e) {
e.printStackTrace();

```

} 

funny thing is that the connection is working, but every second my logcat shouts the errormessage shown above.

Answer: 
You are using an adblocker app and you have Shazam installed. Just either get the paid version of Shazam, remove ad blocker or just ignore the error.
Check this first in your AndroidManifest.xml:

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

```

Localhost ip address is: `127.0.0.1` so u can check by this too.

try with this http connection:

```
public SomeClass {
    HTTTPUrlConnection conn = new HTTPUrlConnection(...);
    SomeClass instance = new SomeClass();

    private SomeClass() {}
    public static getInstance() {
       return instance;
    }
}

```

you should try `Singleton pattern` for request response.