When you start up ConsoleOne, the application usually selects a random read-write replica to connect to. You cannot specify which replica to connect to, but you can tell ConsoleOne to connect to the Master replica by using the forcemaster option.
In various Novell TIDs the syntax is shown as either -forcemaster or /forcemaster or . YMMV, and it may be dependant on your version of ConsoleOne, so try them both out. Example syntax is: