diff --git a/homeassistant/components/netgear/router.py b/homeassistant/components/netgear/router.py
index 7339b9ea1ac..40e26128d8d 100644
--- a/homeassistant/components/netgear/router.py
+++ b/homeassistant/components/netgear/router.py
@@ -172,6 +172,8 @@ class NetgearRouter:
                 "link_rate": None,
                 "signal": None,
                 "ip": None,
+                "ssid": None,
+                "conn_ap_mac": None,
             }
 
         await self.async_update_device_trackers()
diff --git a/homeassistant/components/netgear/sensor.py b/homeassistant/components/netgear/sensor.py
index d8e81cd639f..9762a777194 100644
--- a/homeassistant/components/netgear/sensor.py
+++ b/homeassistant/components/netgear/sensor.py
@@ -65,7 +65,7 @@ class NetgearSensorEntity(NetgearDeviceEntity, SensorEntity):
         self.entity_description = SENSOR_TYPES[self._attribute]
         self._name = f"{self.get_device_name()} {self.entity_description.name}"
         self._unique_id = f"{self._mac}-{self._attribute}"
-        self._state = self._device[self._attribute]
+        self._state = self._device.get(self._attribute)
 
     @property
     def native_value(self):
@@ -77,7 +77,7 @@ class NetgearSensorEntity(NetgearDeviceEntity, SensorEntity):
         """Update the Netgear device."""
         self._device = self._router.devices[self._mac]
         self._active = self._device["active"]
-        if self._device[self._attribute] is not None:
+        if self._device.get(self._attribute) is not None:
             self._state = self._device[self._attribute]
 
         self.async_write_ha_state()