java.net.SocketTimeoutException: Read timed out

i connect to AWS(Amazon WebService) and read data from specific table and from within data S3Link object used this object to return image for each item some image not return because SocketTimeoutException

    @Override
    protected List<Item> doInBackground(Void... params) {

        itemList= ItemOperation.getItemList();      // get data from Amazon

        Log.e(TAG,itemList.size()+"");
        return itemList;
    }

    @Override
    protected void onPostExecute(List<Item> items) {
        new DownloadImage().execute(items);
    }
}

public class DownloadImage extends AsyncTask<List<Item>,Void,Void>{
    @Override
    protected Void doInBackground(List<Item>... params) {

        AmazonS3Client s3Client=new AmazonS3Client(Constants.MANAGER.getCredentials());
        InputStream myObjectBytes=null;
        S3Object getResponse=null;
        GetObjectRequest getRequest;
        for (int i=0;i<params[0].size();i++) {
            String bucketName= params[0].get(i).getItemPhoto1().getBucketName();
            String pictureId= params[0].get(i).getItemPhoto1().getKey();
            getRequest = new GetObjectRequest(bucketName,pictureId);
            getResponse = s3Client.getObject(getRequest);
            myObjectBytes = getResponse.getObjectContent();
            itemList.get(i).setBitmap(BitmapFactory.decodeStream(myObjectBytes));
        }
        try {
            myObjectBytes.close();
        } catch (IOException e) {
            e.printStackTrace();
        }


        return null;
    }