From ee1d9255fcd434a7233d4bd0443382e5fb1612f6 Mon Sep 17 00:00:00 2001
From: Classic298 <27028174+Classic298@users.noreply.github.com>
Date: Sun, 11 Oct 2026 19:06:11 +0200
Subject: [PATCH] fix: MCP server connection failures are not logged at the
 default log level (#32229)

When an MCP tool server fails to connect during a chat, the chat shows "Failed to connect to MCP server" but the reason was only logged at debug level, so it never appeared in the logs of a default install. The failure is now logged as an error with the full cause, such as a refused connection or a 401 from the server. The message in the chat is unchanged.

Fixes #32213
---
 backend/open_webui/utils/middleware.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/backend/open_webui/utils/middleware.py b/backend/open_webui/utils/middleware.py
index 6eca511252..fe967019a8 100644
--- a/backend/open_webui/utils/middleware.py
+++ b/backend/open_webui/utils/middleware.py
@@ -3085,8 +3085,8 @@ async def process_chat_payload(request, form_data, user, metadata, model):
                                 'client': client,
                                 'direct': False,
                             }
-                    except Exception as e:
-                        log.debug(e)
+                    except Exception:
+                        log.exception("Failed to connect to MCP server '%s'", server_id)
                         if event_emitter:
                             await event_emitter(
                                 {