Unable to add a ESX 6.0 host to vCenter 6.0

Hello,

I am using the vCenter 6.0 build 2172318. I have been trying to add 2 hosts to the vCenter after creating a Datacenter.

One of the hosts fails with a general system error. While adding the second host another error seems to arise:

I am unable to figure out what the problem here is.  It would be of great help if you could help me out.

Thanks!