diff --git a/src/module/core/download_client.py b/src/module/core/download_client.py
index 94297bfd..236f2cc9 100644
--- a/src/module/core/download_client.py
+++ b/src/module/core/download_client.py
@@ -13,6 +13,10 @@ class DownloadClient:
     def __init__(self):
         self.client = getClient()
 
+    def auth(self):
+        host, username, password = settings.downloader.host, settings.downloader.username, settings.downloader.password
+        self.client.auth(host, username, password)
+
     def init_downloader(self):
         prefs = {
             "rss_auto_downloading_enabled": True,
diff --git a/src/module/downloader/__init__.py b/src/module/downloader/__init__.py
index 2dd7a157..527d6a40 100644
--- a/src/module/downloader/__init__.py
+++ b/src/module/downloader/__init__.py
@@ -1,11 +1,5 @@
-from module.conf import settings
-
-
 def getClient():
-    host = settings.downloader.host
-    username = settings.downloader.username
-    password = settings.downloader.password
     # TODO 多下载器支持
     # 从 settings 里读取下载器名称，然后返回对应 Client
     from .qb_downloader import QbDownloader
-    return QbDownloader(host, username, password)
+    return QbDownloader()
diff --git a/src/module/downloader/qb_downloader.py b/src/module/downloader/qb_downloader.py
index 4170dfb5..64e8b643 100644
--- a/src/module/downloader/qb_downloader.py
+++ b/src/module/downloader/qb_downloader.py
@@ -7,27 +7,30 @@ from qbittorrentapi.exceptions import Conflict409Error
 from module.conf import settings
 from module.ab_decorator import qb_connect_failed_wait
 
-from .exceptions import ConflictError
+from module.downloader.exceptions import ConflictError
 
 logger = logging.getLogger(__name__)
 
 
 class QbDownloader:
     @qb_connect_failed_wait
-    def __init__(self, host, username, password):
+    def __init__(self):
+        self._client: Client | None = None
+
+    @qb_connect_failed_wait
+    def auth(self, host, username, password):
         self._client = Client(
             host=host,
             username=username,
             password=password,
-            VERIFY_WEBUI_CERTIFICATE=settings.downloader.ssl,
-            RAISE_ERROR_FOR_UNSUPPORTED_QBITTORRENT_VERSIONS=True,
+            VERIFY_WEBUI_CERTIFICATE=settings.downloader.ssl
         )
         while True:
             try:
                 self._client.auth_log_in()
                 break
             except LoginFailed:
-                logger.debug(
+                logger.warning(
                     f"Can't login qBittorrent Server {host} by {username}, retry in {5} seconds."
                 )
             time.sleep(5)