지도호출시 에러 문의

안녕하세요.
현재 최신 지도 라이브러리 (v. 1.3.1.0) 를 쓰고있는데요.

네이티브 앱 키, 패키지명, 키해시 다 정확한데
아래와 같은 로그가 나오면서 지도가 화면에 로딩되지 않습니다.

E/NativeBaseNetConnection: null
java.net.SocketException: Socket closed
at libcore.io.Posix.recvfromBytes(Native Method)
at libcore.io.Posix.recvfrom(Posix.java:189)
at libcore.io.BlockGuardOs.recvfrom(BlockGuardOs.java:250)
at libcore.io.IoBridge.recvfrom(IoBridge.java:549)
at java.net.PlainSocketImpl.read(PlainSocketImpl.java:481)
at java.net.PlainSocketImpl.access$000(PlainSocketImpl.java:37)
at java.net.PlainSocketImpl$PlainSocketInputStream.read(PlainSocketImpl.java:237)
at org.apache.http.impl.io.AbstractSessionInputBuffer.fillBuffer(AbstractSessionInputBuffer.java:108)
at org.apache.http.impl.io.AbstractSessionInputBuffer.read(AbstractSessionInputBuffer.java:139)
at org.apache.http.impl.io.ContentLengthInputStream.read(ContentLengthInputStream.java:179)
at org.apache.http.impl.io.ContentLengthInputStream.read(ContentLengthInputStream.java:193)
at org.apache.http.conn.EofSensorInputStream.read(EofSensorInputStream.java:183)
at java.nio.channels.Channels$InputStreamChannel.read(Channels.java:306)
at net.daum.mf.map.n.api.NativeBaseNetConnection.fastChannelCopy(NativeBaseNetConnection.java:317)
at net.daum.mf.map.n.api.NativeBaseNetConnection.readFromInputStream(NativeBaseNetConnection.java:298)
at net.daum.mf.map.n.api.NativeBaseNetConnection.notifyFinishConnection(NativeBaseNetConnection.java:261)
at net.daum.mf.map.n.api.NativeBaseNetConnection.access$000(NativeBaseNetConnection.java:35)
at net.daum.mf.map.n.api.NativeBaseNetConnection$1.run(NativeBaseNetConnection.java:120)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
E/NativeBaseNetConnection: url=http://ot1.maps.daum-img.net/tile/hd/I/L4/999/445.jpg
또는
E/NativeBaseNetConnection: url=http://ot0.maps.daum-img.net/tile/hd/I/L4/1000/444.jpg

확인 좀 부탁드립니다.