diff --git a/packages/stream_chat/lib/src/core/error/stream_chat_error.dart b/packages/stream_chat/lib/src/core/error/stream_chat_error.dart
index 46302b4d..f517bea4 100644
--- a/packages/stream_chat/lib/src/core/error/stream_chat_error.dart
+++ b/packages/stream_chat/lib/src/core/error/stream_chat_error.dart
@@ -1,6 +1,10 @@
+import 'dart:io';
+
 import 'package:equatable/equatable.dart';
 import 'package:stream_chat/src/core/error/chat_error_code.dart';
+import 'package:stream_chat/src/ws/websocket.dart';
 import 'package:stream_chat/stream_chat.dart';
+import 'package:web_socket_channel/web_socket_channel.dart';
 
 ///
 class StreamChatError with EquatableMixin implements Exception {
@@ -32,6 +36,13 @@ class StreamWebSocketError extends StreamChatError {
     return StreamWebSocketError(message, data: data);
   }
 
+  ///
+  factory StreamWebSocketError.fromWebSocketChannelError(
+      WebSocketChannelException error) {
+    final message = error.message ?? '';
+    return StreamWebSocketError(message);
+  }
+
   ///
   int? get code => data?.code;
 
diff --git a/packages/stream_chat/lib/src/ws/websocket.dart b/packages/stream_chat/lib/src/ws/websocket.dart
index 4c7c91ed..f9d8a210 100644
--- a/packages/stream_chat/lib/src/ws/websocket.dart
+++ b/packages/stream_chat/lib/src/ws/websocket.dart
@@ -325,6 +325,20 @@ class WebSocket with TimerHelper {
   void _onConnectionError(error, [stacktrace]) {
     _logger?.warning('Error occurred', error, stacktrace);
 
+    StreamWebSocketError wsError;
+    if (error is WebSocketChannelException) {
+      wsError = StreamWebSocketError.fromWebSocketChannelError(error);
+    } else {
+      wsError = StreamWebSocketError(error.toString());
+    }
+
+    final completer = connectionCompleter;
+    // complete with error if not yet completed
+    if (completer != null && !completer.isCompleted) {
+      // complete the connection with error
+      completer.completeError(wsError);
+    }
+
     // resetting connect, reconnect request flag
     _resetRequestFlags();