VCSA 5.5 u2 and WinServer 2012R2

I have an odd situation here....

I am running the VCSA 5.5u2 appliance in a Win Server 2012 R2 Forest and Domain.

I am able to join the appliance to the domain (According to the :5840 website),   however whenever I go into the vSphere web client to get my AD perms set up using default root login,  it is not showing my AD domain as an option.

What am I missing here?

I checked my DNS, forward and reverse entries are in there for my AD server (again, it said it successfully connected to AD),

I've rebooted the appliance numerous times.

Time is synced to the AD controller....

Any thoughts?

Thanks!