As I have learned in a German forum,
in my case the firewall was the malefactor:
The ADE program is to be allowed to communicate through the firewall:
->Start
->System Control
->Security Center
-> Windows Firewall
->Allow Program to communicate through Firewall
If “ADE” is not in the List of Programmes that are permitted,
then add it to that List by using the button “Change settings”.
May be the English names of buttons and menus are somewhat different- I
tried to translate the german names.
Don’t forget to re-start your computer.