diff --git a/backend/src/module/downloader/client/qb_downloader.py b/backend/src/module/downloader/client/qb_downloader.py
index ed7b0a131..789c7a6c5 100644
--- a/backend/src/module/downloader/client/qb_downloader.py
+++ b/backend/src/module/downloader/client/qb_downloader.py
@@ -1,5 +1,8 @@
 import logging
 import httpx
+import asyncio
+
+from ..exceptions import ConflictError, AuthorizationError
 
 logger = logging.getLogger(__name__)
 
@@ -131,6 +134,12 @@ async def __aenter__(self):
         self._client = httpx.AsyncClient(
             base_url=self.host,
         )
+        while not await self.check_host():
+            logger.warning(f"[Downloader] Failed to connect to {self.host}, retry in 30 seconds.")
+            await asyncio.sleep(30)
+        if not await self.auth():
+            await self._client.aclose()
+            raise AuthorizationError("Failed to login to qbittorrent.")
         return self
 
     async def __aexit__(self, exc_type, exc_val, exc_tb):
diff --git a/backend/src/module/downloader/exceptions.py b/backend/src/module/downloader/exceptions.py
index 7ec28c73a..4fcc3142a 100644
--- a/backend/src/module/downloader/exceptions.py
+++ b/backend/src/module/downloader/exceptions.py
@@ -1,2 +1,7 @@
 class ConflictError(Exception):
     pass
+
+
+class AuthorizationError(Exception):
+    pass
+