I just finished creating a MASTER, SLAVE1, SLAVE2, SLAVE3, SLAVE4 I made a copy of all the slaves sites from the master site everyting works great on all the frond ends. My question is: I can log into the admin on the MASTER and SLAVE1 site but the log in on admin 2,3,4 doesnt work at all I used the same email and password on all of them any ideas? I did check the permissions and they are all the same on all web sites. I used different databases for all everything went smooth I just can't log into some of backends! also CB is loaded and I can only log in to the MASTER AND SLAVE1 with CB log in module the other three sites 2,3,4 I can't log in just like the back end of 2,3 and 4.

I suppose that you have entered an invalid login or password.

To check, here it is a procedure that may help you.

I suppose that you have created independent website (not shared the users).
When you say can not login the slave 2,3,4, I suppose that you have the login form that is display and that you have a method to verify that you have the correct admin form that is display.
If you have provided different website title, the you can check that each login form has a different title for each slave.

When you are sure to have the correct login form displayed, you can verify that you are using the right login name when you connect with your PHPMyAdmin into the DB of the slave site and searching for the table "#__users" where "#__" is the table prefix you have chosen for the slave. There you should find all the username.
So you can check that you provide the correct username.

If you need to "reset" the password of your admin, you can copy a know value from a DB where you know the value and replace the password of the DB where you have lost the password.
For example, copy the password present in the slave1 DB and paste it into the slave2 DB