diff --git a/klippy/klippy.py b/klippy/klippy.py
index 51ec2bd6..d11959e2 100644
--- a/klippy/klippy.py
+++ b/klippy/klippy.py
@@ -137,16 +137,20 @@ class Printer:
         except (self.config_error, pins.error) as e:
             logging.exception("Config error")
             self._set_state("%s%s" % (str(e), message_restart))
+            return
         except msgproto.error as e:
             logging.exception("Protocol error")
             self._set_state("%s%s" % (str(e), message_protocol_error))
+            return
         except mcu.error as e:
             logging.exception("MCU error during connect")
             self._set_state("%s%s" % (str(e), message_mcu_connect_error))
+            return
         except:
             logging.exception("Unhandled exception during connect")
             self._set_state("Internal error during connect.%s" % (
                 message_restart,))
+            return
         try:
             self._set_state(message_ready)
             for cb in self.event_handlers.get("klippy:ready", []):