'Ensure the information from the Luci router is up to date.
Returns boolean if scanning successful.'

@_refresh_on_acccess_denied
def _update_info(self):

    if (not self.success_init):
        return False
    _LOGGER.info('Checking    ARP')
    if (not self.hostapd):
        hostapd = _req_json_rpc(self.url, self.session_id, 'list', 'hostapd.*', '')
        self.hostapd.extend(hostapd.keys())
    self.last_results = []
    results = 0
    for hostapd in self.hostapd:
        result = _req_json_rpc(self.url, self.session_id, 'call', hostapd, 'get_clients')
        if result:
            results = (results + 1)
            self.last_results.extend(result['clients'].keys())
    return bool(results)
