From 3811a793f09f84cb57431bb83d00ed58ea893c73 Mon Sep 17 00:00:00 2001
From: Thomas Eizinger <thomas@eizinger.io>
Date: Fri, 31 Oct 2025 18:56:36 +1100
Subject: [PATCH] chore(connlib): log fatal tunnel errors (#10768)

Resolves: #10765
---
 rust/client-shared/src/eventloop.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/rust/client-shared/src/eventloop.rs b/rust/client-shared/src/eventloop.rs
index 9ec4867c3..0e9c99aba 100644
--- a/rust/client-shared/src/eventloop.rs
+++ b/rust/client-shared/src/eventloop.rs
@@ -151,6 +151,10 @@ impl Eventloop {
                     return Ok(());
                 }
                 Err(e) => {
+                    if !e.is_authentication_error() {
+                        tracing::error!("Fatal tunnel error: {e:#}");
+                    }
+
                     // Ignore error from shutdown to not obscure the original error.
                     let _ = self.shut_down_tunnel().await;