hi guys, I got some problem with samba 4 installation. I have finish the installation. when I tried to client join from XP for the 1st time, I have no problem but when I disjoin the client and after that join again show message error "logon failure : unknown username or bad password " while in the first time i joint the client had no problem. for your notice, I join the with user administrator and pass 123456 is there any of you could help me guys thanks. Best Regards, Roy