bind problem

Hi all and sorry for my bad english...

Ive installed bind 9 with dhcp and all seems works fine.
Dhcp release ip address and write records in a dns zone files.

Now, ive disabled dhcp and i use static ip address on my client.

This is part of my named.conf:

zone "domain.com" {
type master;
file "domain.com.zone";
allow-update { any; };
allow-transfer { none; };
allow-query { any; };
};

Now ive deleted
allow-update { rndckey; }; (used it with dhcp)
and added
allow-update { any; }; (allow all clients update zone files)

But the clients doesnt update the zone files.
Why?

Ive tried to create an acl too:

acl mynet {
10.100.0.0/24; 127.0.0.1;
};

and allow-update { mynet; };

but clients doesnt update dns zone. :(
Can i use static ip address and automatically zone file updating?

anyone can help me?
Thanks.
.