Browser Minimum Requirement Check

We as a corporation are a new user to Innovator and have just got the first server installed in V11SP9.  The issues that I am having are with the different browsers.  One my local Windows 10 machine, I can run Innovator perfectly with IE 11 and Chrome.  However, when trying to run Edge, I get the "You are currently running browser "Microsoft Edge 13". The browser has failed the browser requirement check" error.  Another machine running Windows 10 on our network works fine with Edge but not IE 11.  A third workstation running Windows 10 will not work on either Edge or IE11 at all - the same browser requirement error appears. Can someone point me to some more technical info on the differences between the browsers so I can try and troubleshoot these issues.   Thanks very much   Mark Lawrence HEICO Aerospace Hollywood, FL