Fucking Win7 and others join AD with samba error

The funny and bunny Windows 7(tm) don’t like to be late or early , it pretends to be just in time , so when you try to add Win7 to AD or simple PDC done on samba ( also with crappy Zentyal or ClearOS or others ) , after the registry change

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanManWorkstation\Parameters]

"DomainCompatibilityMode"=dword:00000001
"DNSNameResolutionRequired"=dword:00000000

Remember to syncronize the cocks clocks of the client to server ntp service otherwise you will be dumped in a tube of madness by the error “cannot find the domain name” or “Username or Password are invalid” .

My experiece 3 minutes in clocks difference , 1 hour of wasted time .