After installing the Power BI Gateway software on an on premise windows 2016 virtual server, I entered my email address to register the gateway. Next I clicked sign in and a pop-up box comes that says "Sign in to your account". This pop up was blank except for that one statement in the upper left portion. It had no where that I could enter any credentials. After several minutes I closed the pop up and I get the error "Failed to sign in. Please verify your credentials and try again.". Has anybody else encountered this problem?