AdMob Após o recebimento do anúncio - IOException se conectando ao URL do anúncio

i tenho um aplicativo Android que precisa exibir anúncios da AdMob. aqui está o meu log:

07-18 01:55:53.116: INFO/Ads(8682): adRequestUrlHtml: <html><head><script src="http://www.gstatic.com/afma/sdk-core-v40.js"></script><script>AFMA_buildAdURL({"preqs":0,"u_sd":1.5,"slotname":"**************","u_w":320,"msid":"com.paladin.hilula","cap":"m","adtest":"on","js":"afma-sdk-a-v4.1.0","isu":"*********************************","format":"320x50_mb","net":"ed","app_name":"1.android.com.paladin.hilula","hl":"hd","u_h":569,"testing":1,"u_audio":1,"u_so":"p"});</script></head><body></body></html>
07-18 01:55:54.187: INFO/Ads(8682): Received ad url: <"url": "http://r.admob.com:80/ad_source.php?preqs=0&u_sd=1.5&slotname=**************&u_w=320&msid=com.paladin.hilula&cap=m&adtest=on&js=afma-sdk-a-v4.1.0&isu=*************************&format=320x50_mb&net=ed&app_name=1.android.com.paladin.hilula&hl=hd&u_h=569&testing=1&u_audio=1&u_so=p&output=html&region=mobile_app&u_tz=-180&ex=1&client_sdk=1", "afmaNotifyDt": "null">
07-18 01:56:15.288: WARN/Ads(8682): IOException connecting to ad url.
07-18 01:56:15.288: WARN/Ads(8682): java.net.SocketTimeoutException: Connection timed out
07-18 01:56:15.288: WARN/Ads(8682):     at org.apache.harmony.luni.platform.OSNetworkSystem.connect(Native Method)
07-18 01:56:15.288: WARN/Ads(8682):     at dalvik.system.BlockGuard$WrappedNetworkSystem.connect(BlockGuard.java:357)
07-18 01:56:15.288: WARN/Ads(8682):     at org.apache.harmony.luni.net.PlainSocketImpl.connect(PlainSocketImpl.java:204)
07-18 01:56:15.288: WARN/Ads(8682):     at org.apache.harmony.luni.net.PlainSocketImpl.connect(PlainSocketImpl.java:437)
07-18 01:56:15.288: WARN/Ads(8682):     at java.net.Socket.connect(Socket.java:983)
07-18 01:56:15.288: WARN/Ads(8682):     at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnection.<init>(HttpConnection.java:75)
07-18 01:56:15.288: WARN/Ads(8682):     at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnection.<init>(HttpConnection.java:48)
07-18 01:56:15.288: WARN/Ads(8682):     at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnection$Address.connect(HttpConnection.java:322)
07-18 01:56:15.288: WARN/Ads(8682):     at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnectionPool.get(HttpConnectionPool.java:89)
07-18 01:56:15.288: WARN/Ads(8682):     at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.getHttpConnection(HttpURLConnectionImpl.java:285)
07-18 01:56:15.288: WARN/Ads(8682):     at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.makeConnection(HttpURLConnectionImpl.java:267)
07-18 01:56:15.288: WARN/Ads(8682):     at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:205)
07-18 01:56:15.288: WARN/Ads(8682):     at b.a(Unknown Source)
07-18 01:56:15.288: WARN/Ads(8682):     at b.doInBackground(Unknown Source)
07-18 01:56:15.288: WARN/Ads(8682):     at android.os.AsyncTask$2.call(AsyncTask.java:185)
07-18 01:56:15.288: WARN/Ads(8682):     at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306)
07-18 01:56:15.288: WARN/Ads(8682):     at java.util.concurrent.FutureTask.run(FutureTask.java:138)
07-18 01:56:15.288: WARN/Ads(8682):     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088)
07-18 01:56:15.288: WARN/Ads(8682):     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581)
07-18 01:56:15.288: WARN/Ads(8682):     at java.lang.Thread.run(Thread.java:1019)
07-18 01:56:15.296: INFO/Ads(8682): onFailedToReceiveAd(A network error occurred.)

Eu recebo o URL, mas não posso mostrá-lo.

no manifesto:

    <activity android:name="com.google.ads.AdActivity"
              android:configChanges="keyboard|keyboardHidden|orientation"/>
  </application>
  <uses-permission android:name="android.permission.INTERNET"/>
  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

in .java:

    // Create the adView
    AdView adView = new AdView(this, AdSize.BANNER, MY_AD_UNIT_ID);
    // Lookup your LinearLayout assuming it’s been given
    // the attribute android:id="@+id/mainLayout"
    RelativeLayout layout = (RelativeLayout)findViewById(R.id.rlayout);
    // Add the adView to it
    layout.addView(adView);
    // Initiate a generic request to load it with an ad
    AdRequest r = new AdRequest();
    r.setTesting(true);
    r.addTestDevice("*****************************");

    adView.loadAd(r);

questionAnswers(2)

yourAnswerToTheQuestion