For the last week or so I've had a problem when attempting to stream 'FoxNewsGo'. There was no problem with 'Fox News Streaming (third party sites)' or any of the other news outlets. A quick Google showed that I wasn't alone, as others were/are having the same problem.
As with so many IE problems they can become exasperating, and the fix itself usually turns out to be a simple one; "why didn't I think of that before". A little research and I found this:
From W10's 'Search programs and files' enter ipconfig /flushdns. Also, another supposedly quick remedy is to invoke CTRL F5 while the browser is open, but I can't vouch for that one. Bottom line is it works fine now.