I took a snapshot of this VM(Oracle Linux 6.5) last month when all the installation was done. The nework connections was working when I took the snapshot. Now when I rolled it back to that snapshot, it says no network connections. All the network configuration is still there.
By the way, it shows IP Address: fe80::250::56ff:Fead:xxxx now from the vSphere client guest view.
How to fix it?