Problem connecting to the replicated server

I've got a master/slave cluster set up with just a master and a slave.  I can connect to the master with a client app no problem.  My slave can connect to the master and replicate no problem.  But when I use a client app to connect to the slave like this:

objectdb://slaveserverurl.com:6136//masterserverurl.net:6136/prod/theFile.odb;user=slaveUserName;password=slavePassword;

I get an error: User slaveUserName has no permission to to access database file (error 572)

Why is that?

Check that you add the user (slaveUserName) to the server's user list of the slave server.

Hello.  Yes I did, I even gave the slave user permission to the same path as the master user.

In the connection url try to specify a username/password for the master server.

Hi I have tried that, when I do that it will say "Login Error (bad username 'masterUserName' or password) (error 575)"