I recently added my vCenter to my Active Directory Domain and set the Domain to be the default identity source. I logged out of the Local Admin User, downloaded the Advanced Authentication Plug-In or whatever it’s called and selected Use Windows Session Authentication and clicked login and it worked! However, when I try to manually type in my domain credentials it always tells me “INVALID CREDENTIALS”. I’ve tried DomainDomainName, DomainName@Domain.Com, just my DomainName, I’ve even gone to my DC and reset my password to make sure I was using the correct password. Can anyone point me in the direction of where I should start looking to see what this issue is?