Morning,
I just caught this issue too.. been a while. I am willing to bet it's an issue with the default gateway. You need to follow these steps:
1. Login to shell via vi-admin
2. Become root (sudo su -) use vi-admin password
3. Add the following to /etc/init.d/boot.local
route add default gw gate_way_ip_adddress
4. Add the following to /etc/sysconfig/network/ifcfg-eth0
GATEWAY='gate_way_ip_adddress'
5. Reboot the machine (reboot)
It should now work you can confirm this via the command as vi-admin
route
Should display a destination default line.
Let me know if this does not help. Or assign points if it solves the issue.
Thanks