There is no additional information available. If you the servers do not communicate, its most likely a mysql permissions problem. You should enable logging in mysql on the master and slave server and check which errors you get there.
A multiserver setup is really easy installed:
1) Install the amster node in standard mode.
2) install all slave nodes in expert mode and choose that you want to join a master server and the enter the hostname and mysql root user credentials of the master server.