Windows Media Player Error MSG - 'network error occurred'

Hello. Whenever I click ‘open item’ in my Tversity library I get this error message from Windows Media Player ‘Windows Media Player cannot play the file because a network error occurred. The server might not be available. Verify that you are connected to the network and that your proxy settings are correct’

It’s a pain in the a** because it’s restricting me from watching my stream on my TV.

I’ve disabled firewalls, messed around with settings. Is there anything I’m missing. Help much appreciated THANKS!!