Chaos tests have been failing due to the following trace for some time.

Traceback (most recent call last):
  File "/usr/local/autotest/server/cros/ap_configurators/ap_cartridge.py", line 52, in _apply_settings
    configurator.apply_settings()
  File "/usr/local/autotest/server/cros/ap_configurators/dynamic_ap_configurator.py", line 771, in apply_settings
    self.establish_driver_connection()
  File "/usr/local/autotest/server/cros/ap_configurators/dynamic_ap_configurator.py", line 723, in establish_driver_connection
    self._webdriver_port)
  File "/usr/local/autotest/server/cros/ap_configurators/dynamic_ap_configurator.py", line 268, in check_webdriver_ready
    raise error.TestError(err)
TestError: ('Could not establish connection: %s', 'localhost')


This bug will used to track all chaos related fixes until that lab is up and running tests on regular basis.