Hi all,
you won't believe how I solved it!!!!
I've a Dell laptop so I went back to Dell Mobile Connect following https://www.windowslatest.com/2018/01/15/install-dell-mobile-connect-app-windows-10/?linkId=64176106
When I finished connecting with Dell Mobile Connect, My Phone Connection appeared at 90% connection (I was stuck at 60%). So, from my mobile I tried to connect again to following the wizard and failed again at 60% but when closed and opened again it worked only asking for permissions. Unbelievable!!
I don't understand how My phone can fail on the easiest part when Samsung Flow o Dell Mobile Connect do it easily.
Ask me for details if you need so.
Sergi