'Retrieve latest information from the Netgear router.
Returns boolean if scanning successful.'

def _update_info(self):

    if (not self.success_init):
        return
    _LOGGER.info('Scanning')
    results = self._api.get_attached_devices()
    if (results is None):
        _LOGGER.warning('Error    scanning    devices')
    self.last_results = (results or [])
