title: Admob shows Test ads but not real ads
body: <p>I'm using admob for showing android ads. The test ads are working fine but real ads are not shown. Also, I've no issue with real interstitial ads as they work fine. Just the real banner ads are not showing up. My java code is</p>
  
  <pre><code>private InterstitialAd interstitial;    
  interstitial = new InterstitialAd(MainActivity.this);
  
          interstitial.setAdUnitId("ca-app-pub-********");
  
          AdView adView = (AdView) this.findViewById(R.id.adView);               
          AdRequest adRequest = new AdRequest.Builder()
  
          // Add a test device to show Test Ads
           .addTestDevice(AdRequest.DEVICE_ID_EMULATOR)
           .addTestDevice("4CCC00EF4EA205A6FE82E1AEB26B0839")
                  .build();
  
          // Load ads into Banner Ads
          adView.loadAd(adRequest);
  
          // Load ads into Interstitial Ads
          //interstitial.loadAd(adRequest);
  </code></pre>
  
  <p>The Layout file is</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:ads="http://schemas.android.com/apk/res-auto"
      android:layout_width="fill_parent"
      android:layout_height="fill_parent"
      android:orientation="vertical" &gt;
  
      &lt;com.google.android.gms.ads.AdView
          android:id="@+id/adView"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          ads:adSize="BANNER"
          ads:adUnitId="ca-app-pub-********" /&gt;
  
  &lt;/LinearLayout&gt;
  </code></pre>