Change IP Address of Appliance

Hi Guys,

I run version 10.0.2, and I'm having all sorts of fun trying to change my adapters IP address.

Basically the servers internal. I am now trying to put it public facing.

I've done the following:

1. delete osconfig & reboot
2. re-enter ip info
3. server comes up on new ip, but configuration->host->ethernet lists wrong ip. Even though ifconfig in console is correct.
4. I use the web interface to set the new ip, this reverts it to the old ip, which also changes ifconfig
5. Server reboots with error on booting saying cannot assign ip

This is driving me mad. How hard can it be?