Connection refused

I have recently configured conserver for a 6-port serial card with Netmos 9845 chipset.

Everytime I type console -u or console <hostname>, I get the following:

console: connect(): 782@console: Connection refused


Here is my config file

###
#
default full {
        rw *;
}

default * {
        logfile /var/log/conserver/&.log;
        timestamp "";
        type device;
        baud 9600;
        parity none;
        master localhost;
        include full;
        host unused;
}

### set the defaults for all the consoles
# these get applied before anything else
access * { 
        trusted localhost;
        allowed localhost;
}


console R1 {
        device /dev/ttyS50;
}

console R2 {
        device /dev/ttyS51;
}


console R3 {
        device /dev/ttyS52;
}

console R4 {
        device /dev/ttyS53;
}