diff --git a/reflex/components/core/banner.py b/reflex/components/core/banner.py
index 8160faf38c5..209f099a941 100644
--- a/reflex/components/core/banner.py
+++ b/reflex/components/core/banner.py
@@ -16,6 +16,7 @@
 from reflex.components.radix.themes.layout.flex import Flex
 from reflex.components.radix.themes.typography.text import Text
 from reflex.components.sonner.toast import ToastProps, toast_ref
+from reflex.config import get_config
 from reflex.constants import Dirs, Hooks, Imports
 from reflex.constants.compiler import CompileVars
 from reflex.environment import environment
@@ -100,9 +101,11 @@ def add_hooks(self) -> list[str | Var]:
         """
         toast_id = "websocket-error"
         target_url = WebsocketTargetURL.create()
+        config = get_config()
         props = ToastProps(
             description=LiteralVar.create(
-                f"Check if server is reachable at {target_url}",
+                config.connection_error_message
+                or f"Check if server is reachable at {target_url}"
             ),
             close_button=True,
             duration=120000,
@@ -135,6 +138,8 @@ def add_hooks(self) -> list[str | Var]:
         else:
             loading_message = Var.create(
                 f"Cannot connect to server: {connection_error}."
+                if not config.connection_error_message
+                else ""
             )
             toast_var = Var(
                 f"toast?.error({loading_message!s}, {{...toast_props, onDismiss: () => setUserDismissed(true)}},)"
diff --git a/reflex/config.py b/reflex/config.py
index 81441ff4c5a..1940078f58d 100644
--- a/reflex/config.py
+++ b/reflex/config.py
@@ -262,6 +262,9 @@ class BaseConfig:
 
     _prefixes: ClassVar[list[str]] = ["REFLEX_"]
 
+    # The message to display in the frontend when a connection error occurs.
+    connection_error_message: str | None = None
+
 
 _PLUGINS_ENABLED_BY_DEFAULT = [
     SitemapPlugin,