Couple days ago, my WinCC unified v20 system works like a charm. Today i opened it, and normally asks username and password. After login, i get gray blank screen. All ready updated it, updated configurator, and launcher. I made a new certificate. I try to find reason this whole day, but nothing helps with this problem. And yes, i try it with edge and firefox.

Thank you.

Juhis8512

Couple days ago, my WinCC unified v20 system works like a charm. Today i opened it, and normally asks username and password. After login, i get gray blank screen. All ready updated it, updated configurator, and launcher. I made a new certificate. I try to find reason this whole day, but nothing helps with this problem. And yes, i try it with edge and firefox.

Thank you.

Does it show your username and login at the top? Does hitting F5, refreshing the screen correct it.   Could be an issue of the user not having a home screen configured on the project?

 Check the trace viewer messages! There should be an error message if something is failing all of a sudden. 
"C:\Program Files\Siemens\Automation\WinCCUnified\bin\RTILtraceViewer.exe"

If nothing shows, try using the debugger to see why a blank page opens.

Juhis8512

Couple days ago, my WinCC unified v20 system works like a charm. Today i opened it, and normally asks username and password. After login, i get gray blank screen. All ready updated it, updated configurator, and launcher. I made a new certificate. I try to find reason this whole day, but nothing helps with this problem. And yes, i try it with edge and firefox.

Thank you.