diff --git a/Aria/src/main/java/com/arialyy/aria/core/common/AbsThreadTask.java b/Aria/src/main/java/com/arialyy/aria/core/common/AbsThreadTask.java
index 92c27fa1..41a0f10a 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/common/AbsThreadTask.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/common/AbsThreadTask.java
@@ -133,6 +133,7 @@ public abstract class AbsThreadTask<ENTITY extends AbsNormalEntity, TASK_ENTITY
     synchronized (AriaManager.LOCK) {
       mChildCurrentLocation += len;
       STATE.CURRENT_LOCATION += len;
+      //mIncrement += len;
       if (System.currentTimeMillis() - mLastSaveTime > 5000) {
         mLastSaveTime = System.currentTimeMillis();
         new Thread(new Runnable() {
@@ -223,7 +224,8 @@ public abstract class AbsThreadTask<ENTITY extends AbsNormalEntity, TASK_ENTITY
           mFailNum++;
           Log.w(TAG,
               "任务【" + mConfig.TEMP_FILE.getName() + "】thread__" + mConfig.THREAD_ID + "__正在重试");
-          final long retryLocation = mChildCurrentLocation;
+          final long retryLocation =
+              mChildCurrentLocation == 0 ? mConfig.START_LOCATION : mChildCurrentLocation;
           mConfig.START_LOCATION = retryLocation;
           AbsThreadTask.this.run();
         }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/downloader/FtpThreadTask.java b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/FtpThreadTask.java
index f1ed0717..5a666512 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/download/downloader/FtpThreadTask.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/FtpThreadTask.java
@@ -42,6 +42,8 @@ class FtpThreadTask extends AbsFtpThreadTask<DownloadEntity, DownloadTaskEntity>
   }
 
   @Override public void run() {
+    //当前子线程的下载位置
+    mChildCurrentLocation = mConfig.START_LOCATION;
     FTPClient client = null;
     InputStream is = null;
     BufferedRandomAccessFile file = null;
@@ -72,8 +74,7 @@ class FtpThreadTask extends AbsFtpThreadTask<DownloadEntity, DownloadTaskEntity>
       file.seek(mConfig.START_LOCATION);
       byte[] buffer = new byte[mBufSize];
       int len;
-      //当前子线程的下载位置
-      mChildCurrentLocation = mConfig.START_LOCATION;
+
       while ((len = is.read(buffer)) != -1) {
         if (STATE.isCancel) break;
         if (STATE.isStop) break;
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/downloader/HttpThreadTask.java b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/HttpThreadTask.java
index 5b3597c3..dd85cb83 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/download/downloader/HttpThreadTask.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/HttpThreadTask.java
@@ -48,6 +48,8 @@ final class HttpThreadTask extends AbsThreadTask<DownloadEntity, DownloadTaskEnt
     HttpURLConnection conn = null;
     BufferedInputStream is = null;
     BufferedRandomAccessFile file = null;
+    //当前子线程的下载位置
+    mChildCurrentLocation = mConfig.START_LOCATION;
     try {
       URL url = new URL(CommonUtil.convertUrl(mConfig.URL));
       conn = ConnectionHelp.handleConnection(url);
@@ -78,8 +80,6 @@ final class HttpThreadTask extends AbsThreadTask<DownloadEntity, DownloadTaskEnt
       file.seek(mConfig.START_LOCATION);
       byte[] buffer = new byte[mBufSize];
       int len;
-      //当前子线程的下载位置
-      mChildCurrentLocation = mConfig.START_LOCATION;
       while ((len = is.read(buffer)) != -1) {
         if (STATE.isCancel) break;
         if (STATE.isStop) break;
diff --git a/Aria/src/main/java/com/arialyy/aria/core/upload/uploader/FtpThreadTask.java b/Aria/src/main/java/com/arialyy/aria/core/upload/uploader/FtpThreadTask.java
index ab8af078..5aea9c18 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/upload/uploader/FtpThreadTask.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/upload/uploader/FtpThreadTask.java
@@ -44,6 +44,8 @@ class FtpThreadTask extends AbsFtpThreadTask<UploadEntity, UploadTaskEntity> {
   }
 
   @Override public void run() {
+    //当前子线程的下载位置
+    mChildCurrentLocation = mConfig.START_LOCATION;
     FTPClient client = null;
     BufferedRandomAccessFile file = null;
     try {
@@ -56,8 +58,6 @@ class FtpThreadTask extends AbsFtpThreadTask<UploadEntity, UploadTaskEntity> {
           + "，结束位置："
           + mConfig.END_LOCATION
           + "】");
-      //当前子线程的下载位置
-      mChildCurrentLocation = mConfig.START_LOCATION;
       client = createClient();
       if (client == null) return;
       initPath();
diff --git a/app/src/main/assets/aria_config.xml b/app/src/main/assets/aria_config.xml
index e88bed32..30e0dca9 100644
--- a/app/src/main/assets/aria_config.xml
+++ b/app/src/main/assets/aria_config.xml
@@ -5,7 +5,7 @@
   <download>
 
     <!--设置下载线程，线程下载数改变后，新的下载任务才会生效，如果任务大小小于1m，该设置也不会生效-->
-    <threadNum value="3"/>
+    <threadNum value="1"/>
 
     <!--设置下载队列最大任务数， 默认为2-->
     <maxTaskNum value="1"/>
diff --git a/app/src/main/java/com/arialyy/simple/download/FtpDownloadActivity.java b/app/src/main/java/com/arialyy/simple/download/FtpDownloadActivity.java
index c68c2844..e7dd8d89 100644
--- a/app/src/main/java/com/arialyy/simple/download/FtpDownloadActivity.java
+++ b/app/src/main/java/com/arialyy/simple/download/FtpDownloadActivity.java
@@ -35,9 +35,8 @@ import java.io.File;
  * Ftp下载测试
  */
 public class FtpDownloadActivity extends BaseActivity<ActivityFtpDownloadBinding> {
-  private final String URL = "ftp://d:d@dygodj8.com:12311/[电影天堂www.dy2018.com]光辉岁月BD韩语中字.rmvb";
   //private final String URL = "ftp://192.168.1.9:21/下载/AriaPrj.zip";
-  //private final String URL = "ftp://192.168.1.9:21/下载/[电影天堂www.dy2018.com]赛车总动员3BD中英双字.mp4";
+  private final String URL = "ftp://192.168.1.9:21/下载/[电影天堂www.dy2018.com]赛车总动员3BD中英双字.mp4";
 
   @Override protected void init(Bundle savedInstanceState) {
     super.init(savedInstanceState);