diff --git a/crates/lanparty-client-win/src/main.rs b/crates/lanparty-client-win/src/main.rs
index 744e936..970f55b 100644
--- a/crates/lanparty-client-win/src/main.rs
+++ b/crates/lanparty-client-win/src/main.rs
@@ -212,13 +212,21 @@ async fn main() -> Result<()> {
     let _ = config.tap_instance_id;
     #[cfg(not(windows))]
     let run_result = run_client(&session).await;
-    session.shutdown("client shutting down").await;
+    let shutdown_message = client_shutdown_message(&run_result);
+    session.shutdown(&shutdown_message).await;
     #[cfg(windows)]
     drop(relay_route_pin);
 
     run_result
 }
 
+fn client_shutdown_message(run_result: &Result<()>) -> String {
+    match run_result {
+        Ok(()) => "client shutting down".to_owned(),
+        Err(error) => format!("client shutting down after error: {error:#}"),
+    }
+}
+
 #[cfg(windows)]
 fn ensure_supported_platform() -> Result<()> {
     Ok(())
@@ -1274,6 +1282,20 @@ mod tests {
         assert!(error.to_string().contains("does not match tunnel identity"));
     }
 
+    #[test]
+    fn reports_runtime_errors_in_shutdown_message() {
+        assert_eq!(
+            client_shutdown_message(&Ok(())),
+            "client shutting down".to_owned()
+        );
+
+        let error = anyhow::anyhow!("route pin changed").context("bridge stopped");
+        assert_eq!(
+            client_shutdown_message(&Err(error)),
+            "client shutting down after error: bridge stopped: route pin changed".to_owned()
+        );
+    }
+
     #[test]
     fn formats_client_diagnostics_status_line() {
         let diagnostics = ClientDiagnostics::new(