Emulate_hue bridge not picked up by Alexa or Hue app

Configuration
1

I have been using the default configurations, but the hue bridge simple isnt picked up by any device.

I noticed the following message when HA is loading up… can anyone decipher it for me?

Exception in thread Thread-3:
Traceback (most recent call last):
  File "C:\Users\HA\AppData\Local\Programs\Python\Python36-32\lib\threading.py", line 916, in _bootstrap_inner
    self.run()
  File "C:\Users\HA\AppData\Local\Programs\Python\Python36-32\lib\site-packages\homeassistant\components\emulated_hue\upnp.py", line 122, in run
    ssdp_socket.bind(("239.255.255.250", 1900))
OSError: [WinError 10049] The requested address is not valid in its context

I’m running HA .47.1 on Windows 10

here is my config file:

emulated_hue:
  type: alexa
  host_ip: 192.168.0.155
  listen_port: 8300
  expose_by_default: true
  exposed_domains:
    - light
    - switch

When I check the two links to see if “emulated hue” is working, both the links show appropriate responses.

Thanks