Networking issue after upgrade to RHEL 7.2

So, we recently upgraded a VM to RHEL 7.1 to 7.2

After rebooting the VM, I am not getting the public internet access automatically. I cannot connect to redhat.com or any other site.
I have to issue the command "systemctl restart network.service to get the access. Everything works fine till the next reboot.

When I check the status of "systemctl status network.service" after the reboot of the VM, its shows all the interface active.

Any suggestions what might be going on here? How can I make sure that I get the public access right after the reboot, without having to issue the restart network.service command.

Thanks
Sangeeta