diff --git a/CommonClient.py b/CommonClient.py
index bd8e1248022d..c4d68faed420 100644
--- a/CommonClient.py
+++ b/CommonClient.py
@@ -127,6 +127,7 @@ class CommonContext():
     items_handling: typing.Optional[int] = None
     slot_info: typing.Dict[int, NetworkSlot]
     current_energy_link_value: int = 0  # to display in UI, gets set by server
+    _messagebox = None
 
     def __init__(self, server_address, password):
         # server state
@@ -356,6 +357,27 @@ async def update_death_link(self, death_link: bool):
         if old_tags != self.tags and self.server and not self.server.socket.closed:
             await self.send_msgs([{"cmd": "ConnectUpdate", "tags": self.tags}])
 
+    def gui_error(self, title: str, text: typing.Union[Exception, str]):
+        """Displays an error messagebox"""
+        if not self.ui:
+            return
+        title = title or "Error"
+        from kvui import MessageBox
+        if self._messagebox:
+            self._messagebox.dismiss()
+        # make "Multiple exceptions" look nice
+        text = str(text).replace('[Errno', '\n[Errno').strip()
+        # split long messages into title and text
+        parts = title.split('. ', 1)
+        if len(parts) == 1:
+            parts = title.split(', ', 1)
+        if len(parts) > 1:
+            text = parts[1] + '\n\n' + text
+            title = parts[0]
+        # display error
+        self._messagebox = MessageBox(title, text, error=True)
+        self._messagebox.open()
+
     def run_gui(self):
         """Import kivy UI system and start running it as self.ui_task."""
         from kvui import GameManager
@@ -418,14 +440,22 @@ async def server_loop(ctx: CommonContext, address=None):
             for msg in decode(data):
                 await process_server_cmd(ctx, msg)
         logger.warning('Disconnected from multiworld server, type /connect to reconnect')
-    except ConnectionRefusedError:
-        logger.exception('Connection refused by the server. May not be running Archipelago on that address or port.')
-    except websockets.InvalidURI:
-        logger.exception('Failed to connect to the multiworld server (invalid URI)')
-    except OSError:
-        logger.exception('Failed to connect to the multiworld server')
-    except Exception:
-        logger.exception('Lost connection to the multiworld server, type /connect to reconnect')
+    except ConnectionRefusedError as e:
+        msg = 'Connection refused by the server. May not be running Archipelago on that address or port.'
+        logger.exception(msg, extra={'compact_gui': True})
+        ctx.gui_error(msg, e)
+    except websockets.InvalidURI as e:
+        msg = 'Failed to connect to the multiworld server (invalid URI)'
+        logger.exception(msg, extra={'compact_gui': True})
+        ctx.gui_error(msg, e)
+    except OSError as e:
+        msg = 'Failed to connect to the multiworld server'
+        logger.exception(msg, extra={'compact_gui': True})
+        ctx.gui_error(msg, e)
+    except Exception as e:
+        msg = 'Lost connection to the multiworld server, type /connect to reconnect'
+        logger.exception(msg, extra={'compact_gui': True})
+        ctx.gui_error(msg, e)
     finally:
         await ctx.connection_closed()
         if ctx.server_address:
@@ -448,7 +478,9 @@ async def process_server_cmd(ctx: CommonContext, args: dict):
         raise
     if cmd == 'RoomInfo':
         if ctx.seed_name and ctx.seed_name != args["seed_name"]:
-            logger.info("The server is running a different multiworld than your client is. (invalid seed_name)")
+            msg = "The server is running a different multiworld than your client is. (invalid seed_name)"
+            logger.info(msg, extra={'compact_gui': True})
+            ctx.gui_error('Error', msg)
         else:
             logger.info('--------------------------------')
             logger.info('Room Information:')
diff --git a/FactorioClient.py b/FactorioClient.py
index 31798392dde9..b7bf324311ad 100644
--- a/FactorioClient.py
+++ b/FactorioClient.py
@@ -150,7 +150,9 @@ async def game_watcher(ctx: FactorioContext):
                 next_bridge = time.perf_counter() + 1
                 ctx.awaiting_bridge = False
                 data = json.loads(ctx.rcon_client.send_command("/ap-sync"))
-                if data["slot_name"] != ctx.auth:
+                if not ctx.auth:
+                    pass  # auth failed, wait for new attempt
+                elif data["slot_name"] != ctx.auth:
                     bridge_logger.warning(f"Connected World is not the expected one {data['slot_name']} != {ctx.auth}")
                 elif data["seed_name"] != ctx.seed_name:
                     bridge_logger.warning(
@@ -342,8 +344,10 @@ async def factorio_spinup_server(ctx: FactorioContext) -> bool:
             await asyncio.sleep(0.01)
 
     except Exception as e:
-        logger.exception(e)
-        logger.error("Aborted Factorio Server Bridge")
+        logger.exception(e, extra={"compact_gui": True})
+        msg = "Aborted Factorio Server Bridge"
+        logger.error(msg)
+        ctx.gui_error(msg, e)
         ctx.exit_event.set()
 
     else:
diff --git a/kvui.py b/kvui.py
index 14eb09194a1e..7afd43636b7d 100644
--- a/kvui.py
+++ b/kvui.py
@@ -464,8 +464,19 @@ def __init__(self, on_log):
         super(LogtoUI, self).__init__(logging.INFO)
         self.on_log = on_log
 
+    @staticmethod
+    def format_compact(record: logging.LogRecord) -> str:
+        if isinstance(record.msg, Exception):
+            return str(record.msg)
+        return (f'{record.exc_info[1]}\n' if record.exc_info else '') + str(record.msg).split("\n")[0]
+
     def handle(self, record: logging.LogRecord) -> None:
-        self.on_log(self.format(record))
+        if getattr(record, 'skip_gui', False):
+            pass  # skip output
+        elif getattr(record, 'compact_gui', False):
+            self.on_log(self.format_compact(record))
+        else:
+            self.on_log(self.format(record))
 
 
 class UILog(RecycleView):