From 71c6f99d3134df127c0d404106032980fcb6fc24 Mon Sep 17 00:00:00 2001
From: uvjustin <46082645+uvjustin@users.noreply.github.com>
Date: Tue, 31 Aug 2021 23:30:05 +0800
Subject: [PATCH] Fix ArestSwitchBase missing is on attribute (#55483)

---
 homeassistant/components/arest/switch.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/homeassistant/components/arest/switch.py b/homeassistant/components/arest/switch.py
index d20eb7a5f8d..ecbf24c23ca 100644
--- a/homeassistant/components/arest/switch.py
+++ b/homeassistant/components/arest/switch.py
@@ -88,6 +88,7 @@ class ArestSwitchBase(SwitchEntity):
         self._resource = resource
         self._attr_name = f"{location.title()} {name.title()}"
         self._attr_available = True
+        self._attr_is_on = False
 
 
 class ArestSwitchFunction(ArestSwitchBase):