[mythtvnz] New Backend / Existing Frontends

[Tortise]

I've setup a new FE/BE and got it running.
The existing and previously fine FE's cannot connect to the new box, they have somehow got the correct new password, hostname is 
correct however there is an asterisk by this complaining about not being able to connect to the database.  The BE setup included the 
"0000" to allow other boxes to access.
Anyone got any ideas what's blocking the FE's on the new FE/BE?