diff --git a/gns3server/api/routes/compute/dependencies/authentication.py b/gns3server/api/routes/compute/dependencies/authentication.py
index 14ba07f91..0412a4136 100644
--- a/gns3server/api/routes/compute/dependencies/authentication.py
+++ b/gns3server/api/routes/compute/dependencies/authentication.py
@@ -91,9 +91,9 @@ async def ws_compute_authentication(websocket: WebSocket) -> Union[None, WebSock
         if not separator:
             raise invalid_user_credentials_exc
 
-        username = secrets.compare_digest(username, server_settings.compute_username)
-        password = secrets.compare_digest(password, server_settings.compute_password.get_secret_value())
-        if not (username and password):
+        username_valid = secrets.compare_digest(username, server_settings.compute_username)
+        password_valid = secrets.compare_digest(password, server_settings.compute_password.get_secret_value())
+        if not (username_valid and password_valid):
             raise invalid_user_credentials_exc
 
     except HTTPException as e:
@@ -101,5 +101,6 @@ async def ws_compute_authentication(websocket: WebSocket) -> Union[None, WebSock
         websocket_error = {"action": "log.error", "event": {"message": err_msg}}
         await websocket.send_json(websocket_error)
         log.error(err_msg)
-        return await websocket.close(code=1008)
+        await websocket.close(code=1008)
+        return None
     return websocket
diff --git a/pyproject.toml b/pyproject.toml
index 258447eb6..ce388d188 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -323,7 +323,6 @@ module = [
   "gns3server.api.routes.compute.capabilities",  # 1
   "gns3server.api.routes.compute.cloud_nodes",  # 14
   "gns3server.api.routes.compute.compute",  # 1
-  "gns3server.api.routes.compute.dependencies.authentication",  # 3
   "gns3server.api.routes.compute.docker_nodes",  # 26
   "gns3server.api.routes.compute.dynamips_nodes",  # 9
   "gns3server.api.routes.compute.ethernet_hub_nodes",  # 9