[Samba] Can't become connected user?

[Dannenberg, Arne]

Please be note to the part that I found in "samba.doc".

Windows XP Professional
When attempting to join a domain, you receive the following error message:
"Computer Name Changes: The following error occurred attempting to join the
domain MYDOMAIN: The specified network password is not correct".
Additionally, your Samba logfile (at debug level 1) reveals:
"smbd/service.c:make_connection(): Can't become connected user!". This is
usually caused by improper registry settings in the client. Use Window's
Group Policy Editor (gpedit.msc) to make the following changes in the "Local
Computer Policy\Computer Configuration\Windows Settings\Security
Settings\Local Policies\Security Options" branch:
Disable: Domain member: Digitally encrypt or sign secure channel data
Disable: Domain member: Digitally sign secure channel data (when possible)