diff --git a/homeassistant/components/light/mystrom.py b/homeassistant/components/light/mystrom.py
index 8d7fb807c6d..9abd96664f2 100644
--- a/homeassistant/components/light/mystrom.py
+++ b/homeassistant/components/light/mystrom.py
@@ -13,9 +13,9 @@ from homeassistant.components.light import (
     Light, PLATFORM_SCHEMA, ATTR_BRIGHTNESS, SUPPORT_BRIGHTNESS,
     SUPPORT_EFFECT, ATTR_EFFECT, SUPPORT_FLASH, SUPPORT_COLOR,
     ATTR_HS_COLOR)
-from homeassistant.const import CONF_HOST, CONF_MAC, CONF_NAME, STATE_UNKNOWN
+from homeassistant.const import CONF_HOST, CONF_MAC, CONF_NAME
 
-REQUIREMENTS = ['python-mystrom==0.4.2']
+REQUIREMENTS = ['python-mystrom==0.4.4']
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -54,9 +54,9 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
     try:
         if bulb.get_status()['type'] != 'rgblamp':
             _LOGGER.error("Device %s (%s) is not a myStrom bulb", host, mac)
-            return False
+            return
     except MyStromConnectionError:
-        _LOGGER.warning("myStrom bulb not online")
+        _LOGGER.warning("No route to device: %s", host)
 
     add_devices([MyStromLight(bulb, name)], True)
 
@@ -107,7 +107,7 @@ class MyStromLight(Light):
     @property
     def is_on(self):
         """Return true if light is on."""
-        return self._state['on'] if self._state is not None else STATE_UNKNOWN
+        return self._state['on'] if self._state is not None else None
 
     def turn_on(self, **kwargs):
         """Turn on the light."""
@@ -136,7 +136,7 @@ class MyStromLight(Light):
             if effect == EFFECT_RAINBOW:
                 self._bulb.set_rainbow(30)
         except MyStromConnectionError:
-            _LOGGER.warning("myStrom bulb not online")
+            _LOGGER.warning("No route to device")
 
     def turn_off(self, **kwargs):
         """Turn off the bulb."""
@@ -163,5 +163,5 @@ class MyStromLight(Light):
 
             self._available = True
         except MyStromConnectionError:
-            _LOGGER.warning("myStrom bulb not online")
+            _LOGGER.warning("No route to device")
             self._available = False
diff --git a/homeassistant/components/switch/mystrom.py b/homeassistant/components/switch/mystrom.py
index 0a87d41d2fe..85fc546d00e 100644
--- a/homeassistant/components/switch/mystrom.py
+++ b/homeassistant/components/switch/mystrom.py
@@ -12,7 +12,7 @@ from homeassistant.components.switch import (SwitchDevice, PLATFORM_SCHEMA)
 from homeassistant.const import (CONF_NAME, CONF_HOST)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['python-mystrom==0.4.2']
+REQUIREMENTS = ['python-mystrom==0.4.4']
 
 DEFAULT_NAME = 'myStrom Switch'
 
@@ -34,8 +34,8 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
     try:
         MyStromPlug(host).get_status()
     except exceptions.MyStromConnectionError:
-        _LOGGER.error("No route to device '%s'", host)
-        return False
+        _LOGGER.error("No route to device: %s", host)
+        return
 
     add_devices([MyStromSwitch(name, host)])
 
@@ -74,8 +74,7 @@ class MyStromSwitch(SwitchDevice):
         try:
             self.plug.set_relay_on()
         except exceptions.MyStromConnectionError:
-            _LOGGER.error("No route to device '%s'. Is device offline?",
-                          self._resource)
+            _LOGGER.error("No route to device: %s", self._resource)
 
     def turn_off(self, **kwargs):
         """Turn the switch off."""
@@ -83,8 +82,7 @@ class MyStromSwitch(SwitchDevice):
         try:
             self.plug.set_relay_off()
         except exceptions.MyStromConnectionError:
-            _LOGGER.error("No route to device '%s'. Is device offline?",
-                          self._resource)
+            _LOGGER.error("No route to device: %s", self._resource)
 
     def update(self):
         """Get the latest data from the device and update the data."""
@@ -93,5 +91,4 @@ class MyStromSwitch(SwitchDevice):
             self.data = self.plug.get_status()
         except exceptions.MyStromConnectionError:
             self.data = {'power': 0, 'relay': False}
-            _LOGGER.error("No route to device '%s'. Is device offline?",
-                          self._resource)
+            _LOGGER.error("No route to device: %s", self._resource)
diff --git a/requirements_all.txt b/requirements_all.txt
index 17eb8455377..7e91ccc59d3 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -1045,7 +1045,7 @@ python-mpd2==1.0.0
 
 # homeassistant.components.light.mystrom
 # homeassistant.components.switch.mystrom
-python-mystrom==0.4.2
+python-mystrom==0.4.4
 
 # homeassistant.components.nest
 python-nest==4.0.1