구글맵을 하나 띄워서 여러 지점들을 찍고 있는데요.

wifi 일때는 문제가 없는데요..

wifi를 off하고 지도띄우기 메뉴로 접근하면 아래와 같은 문제가 생깁니다.

책잠깐 보고 막 덤빈 일이라...뭘 어쩔지 몰라서요.

어떤걸 알아봐야 하는지...어떤걸 고려해야 하는지 조언 부탁드립니다.

java.net.SocketTimeoutException: Connection timed out                                                                              
 at org.apache.harmony.luni.platform.OSNetworkSystem.connect(Native Method)                                                       
 at dalvik.system.BlockGuard$WrappedNetworkSystem.connect(BlockGuard.java:357)                                                    
 at org.apache.harmony.luni.net.PlainSocketImpl.connect(PlainSocketImpl.java:204)                                                 
 at org.apache.harmony.luni.net.PlainSocketImpl.connect(PlainSocketImpl.java:437)                                                 
 at java.net.Socket.connect(Socket.java:1002)                                                                                     
 at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnection.<init>(HttpConnection.java:75)                          
 at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnection.<init>(HttpConnection.java:48)                          
 at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnection$Address.connect(HttpConnection.java:322)                
 at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnectionPool.get(HttpConnectionPool.java:89)                     
 at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.getHttpConnection(HttpURLConnectionImpl.java:285)
 at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.makeConnection(HttpURLConnectionImpl.java:267)   
 at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.retrieveResponse(HttpURLConnectionImpl.java:1018)
 at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:512)   
 at java.net.URL.openStream(URL.java:645)                                                                                         
 at isswa.com.MapTabView.updateOverlay(MapTabView.java:152)                                                                       
 at isswa.com.MapTabView.onCreate(MapTabView.java:82)                                                                             
 at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)                                                   
 at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1615)                                                    
 at android.app.ActivityThread.startActivityNow(ActivityThread.java:1491)                                                         
 at android.app.LocalActivityManager.moveToState(LocalActivityManager.java:127)                                                   
 at android.app.LocalActivityManager.startActivity(LocalActivityManager.java:339)                                                 
 at isswa.com.EventList$AndroidBridge$1.run(EventList.java:169)                                                                   
 at android.os.Handler.handleCallback(Handler.java:587)                                                                           
 at android.os.Handler.dispatchMessage(Handler.java:92)                                                                           
 at android.os.Looper.loop(Looper.java:130)                                                                                       
 at android.app.ActivityThread.main(ActivityThread.java:3691)                                                                     
 at java.lang.reflect.Method.invokeNative(Native Method)                                                                          
 at java.lang.reflect.Method.invoke(Method.java:507)                                                                              
 at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:847)                                               
 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:605)                                                                  
 at dalvik.system.NativeStart.main(Native Method)