OK, got it. I clicked on the systray icon and the UI came up. When I click start->administration it does not come up though. Still seems like a bug... Also, a right click brings up a menu that only had "about" as an option. You should really put the admin UI as on option on that menu. I had been right clicking, but never left clicked on it.
I just installed remote server 2.6 on a Windows Server 2016. It will not run the administrator UI. The configuration window pops up, but the administrator console never shows. I see it running in the process window. Please advise.