Unable to add vcenter to domain

tried to add vcenter 6.7 to 2016 domain. received error : "Idm client exception: Error trying to join AD, error code [31], user [admin@corp.local], domain [corp.local], orgUnit []"

tried different administrator account and checked both domain admins, also used "username@domain" as the user to add the vcenter to pdc.
This is in a VMware 15 workstation lab.
The firewall is blank on vcenter and disabled on pdc.

Can ping ok the domain from SSH connection to vcenter, can ping esxi host ok and PDC.

I tried to add an esxi host that was added to a datacentre on vcenter. Success!
So why cant I add the vcenter to the domain ?
mike shaoulAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Seth SimmonsSr. Systems AdministratorCommented:
2 things..

1) is port 445 open?

2) is vCenter 6.7 at update 1?
starting with Update 1 provides support 2016 AD

VMware vCenter Server 6.7 Update 1 Release Notes
mike shaoulAuthor Commented:
Hi Seth,
There are no firewall entries in my vcenter and I had disabled the firewall on the 2016 pdc.
My vcenter version is , which is 6.7 U1.

so any other ideas ?
mike shaoulAuthor Commented:
in the end I reinstalled vcsa as didn't have issues.  may be I setup vcsa with ip instead of fqdn ?

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
mike shaoulAuthor Commented:
thanks seth :)
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
vmware vcenters

From novice to tech pro — start learning today.