SSLException due uploading item for Amazon service

I upload my file to aws service from android. I configured it like this:

  AwsMetadata awsMetadata = resultData.getParcelable(Params.CommandMessage.EXTRA_MESSAGE);
        AWSCredentials awsCredentials = new BasicAWSCredentials(
                awsMetadata.getAccountId(),
                awsMetadata.getSecretKey()
        );
        // set up region
        TransferManager transferManager = new TransferManager(awsCredentials);
        Region region = Region.getRegion(Regions.fromName(awsMetadata.getRegionEndpoint()));
        transferManager.getAmazonS3Client().setRegion(region);


        final MediaItem mediaItem = datasource.get(0);
        Log.d(App.TAG, "File is exists: "
                + mediaItem.getContentUri() + " "
                + new File(mediaItem.getContentUri()).exists());

        // prepare file for upload
        PutObjectRequest putObjectRequest = new PutObjectRequest(
                awsMetadata.getBucketName(),
                awsMetadata.getSecretKey(),
                new File(mediaItem.getContentUri())
        );


        Log.d(App.TAG, "Total data: " + mediaItem.getSize());
        Upload upload = transferManager.upload(putObjectRequest, new S3ProgressListener() {

            private int totalTransfered = 0;

            @Override
            public void onPersistableTransfer(PersistableTransfer persistableTransfer) {
            }

            @Override
            public void progressChanged(ProgressEvent progressEvent) {

                Log.d(App.TAG, "Bytes are transferred: " + progressEvent.getBytesTransferred());
                totalTransfered += progressEvent.getBytesTransferred();
                long totalSize = mediaItem.getSize();
                Log.d(App.TAG, "Total transferred: " + ((totalTransfered / totalSize) * 100) + " percent");
            }
        });
    }

06-01 11:45:00.712    5182-5768/com.home I/AmazonHttpClient﹕ Unable to execute HTTP request: Write error: ssl=0xb4bb3600: I/O error during system call, Connection reset by peer
    javax.net.ssl.SSLException: Write error: ssl=0xb4bb3600: I/O error during system call, Connection reset by peer
            at com.android.org.conscrypt.NativeCrypto.SSL_write(Native Method)
            at com.android.org.conscrypt.OpenSSLSocketImpl$SSLOutputStream.write(OpenSSLSocketImpl.java:765)
            at com.android.okio.Okio$1.write(Okio.java:70)
            at com.android.okio.RealBufferedSink.emitCompleteSegments(RealBufferedSink.java:116)
            at com.android.okio.RealBufferedSink.write(RealBufferedSink.java:44)
            at com.android.okhttp.internal.http.HttpConnection$FixedLengthSink.write(HttpConnection.java:291)
            at com.android.okio.RealBufferedSink.emitCompleteSegments(RealBufferedSink.java:116)
            at com.android.okio.RealBufferedSink$1.write(RealBufferedSink.java:131)
            at com.amazonaws.http.UrlHttpClient.write(UrlHttpClient.java:155)
            at com.amazonaws.http.UrlHttpClient.createConnection(UrlHttpClient.java:143)
            at com.amazonaws.http.UrlHttpClient.execute(UrlHttpClient.java:60)
            at com.amazonaws.http.AmazonHttpClient.executeHelper(AmazonHttpClient.java:353)
            at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:196)
            at com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:4234)
            at com.amazonaws.services.s3.AmazonS3Client.putObject(AmazonS3Client.java:1644)
            at com.amazonaws.mobileconnectors.s3.transfermanager.internal.UploadCallable.uploadInOneChunk(UploadCallable.java:134)
            at com.amazonaws.mobileconnectors.s3.transfermanager.internal.UploadCallable.call(UploadCallable.java:126)
            at com.amazonaws.mobileconnectors.s3.transfermanager.internal.UploadMonitor.upload(UploadMonitor.java:182)
            at com.amazonaws.mobileconnectors.s3.transfermanager.internal.UploadMonitor.call(UploadMonitor.java:140)
            at com.amazonaws.mobileconnectors.s3.transfermanager.internal.UploadMonitor.call(UploadMonitor.java:54)
            at java.util.concurrent.FutureTask.run(FutureTask.java:237)
            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
            at java.lang.Thread.run(Thread.java:818)

And got SSLException. Amazon SDK uses it's own client and it should be configured properly from the box.

What is the reason for this beahaviour?