DHCP inet problem

[leon]

Hello this is my small problem

i have my : /etc/hostname.bce0 = dhcp
after i reboot server it takes all the information needed form the DHCP

everything works fine but when i want to reassign the IP

#ifconfig bce inet 192.168.1.233 netmask 255.255.255.0

it takes forever to log in thru ssh and is impossible to resolve anything nslookup dig, after i change ip back to the original one everything goes back to normal

if i try to modify with #vi /etc/hostname.bce0 from dhcp to inet 192.168.1.233 netask 255.255.255.0 NONE and reboot same story

so i am lost