def test_internet(self):
        result = True
        with closing(socket.socket(socket.AF_INET, socket.SOCK_STREAM)) as sock:
            sock.settimeout(gpc['ekasa_timeout'])

            if gpc['ekasa_env'] == 'test':
                ekasahost = 'iekasa.financnasprava.sk'
            elif gpc['ekasa_env'] == 'production':
                ekasahost = 'ekasa.financnasprava.sk'

            if sock.connect_ex((ekasahost, 443)) == 0:
                self.led_on(LED_INTERNET)
                self.internet_down = False
                print('TCP connection to {} OK'.format(ekasahost))
                result = True
            else:
                self.internet_down = True
                print('TCP connection to {} FAILED'.format(ekasahost))
                result = False

        self.test_internet_last = time.time()
        return result