CC update 11 failed to run CC master

Hi,

after updating to CC 11 and run the new licencing tool, i'm not abble to run CC master.  Everything was ok in the licence management tool but when i try to run CC master nothing happen !

After uninstall CC 11 and go back to previous CC10 with older licencing tool everything run ok.

What is the problem with the new licencing tool ?

thanks,

Fabrice