It's true that I am using Windows 10. I've worked for years on Linux but only in character-based Putty screens for programming and scripting.
Yes, I have the URL correct. It does come up but is rather scrambled in Firefox. Better in other browsers. This problem is entirely new. It started today.
Upon further testing, I discovered that it is sort of working but things are distributed to the bottom and one has to scroll way down to see anything of interest. Even things like the login link. It's way down there.
I'll play with it some more.