If you deploy branding inside a Virtuozzo container (6.0 or 7.0), you should make a special network configuration for the container.
When IP addresses are managed (added/deleted) by CloudBlue Commerce directly in the container, which is actual for a branding node, all IP/gateway configuration should be removed from the container configuration file on the hardware node, and the network settings should be applied from inside the container.
For more information about network configuration for a container, refer to https://kb.cloudblue.com/130230.