Zonecluster: change default router

Hi,
I can't change the defaultrouter in my zoneclusters, it just wont let me.

root@tipnd03:(LT)~# clzc configure tapp02
clzc:tapp02> info node
node:
        physical-host: tipnd03
        hostname: tapp02-zc1
        net:
                address: 192.168.30.36
                physical: ce1
                defrouter: 192.168.30.195
node:
        physical-host: tipnd04
        hostname: tapp02-zc2
        net:
                address: 192.168.30.37
                physical: ce1
                defrouter: 192.168.30.195
clzc:tapp02> select node physical-host=tipnd03
clzc:tapp02:node> select net address=192.168.30.36
clzc:tapp02:node:net> set defrouter=192.168.30.254
clzc:tapp02:node:net> end
A net resource with the address '192.168.30.36' already exists in node 'tapp02-zc1' scope.
clzc:tapp02:node:net>

I tried to delete the whole net and readd it but no.