I have eight ESXi hosts running 6.7.0 Build 11675023. All hosts are being managed by a vCenter server. My vCenter server is joined to my Active Directory (AD) domain. All eight hosts are joined to the AD. The hosts are listed correctly in my AD Computers Organizational Unit (OU). No problems there. I can login to my vCenter server using my AD credentials. I CANNOT however login to my ESXi hosts using my AD credentials. I receive the notification "Cannot complete login due to an incorrect username or password". Here are the items I have checked and verified:
1. The configured ESXi Hostname and Domain Name Service (DNS) server correctly match the joined computer in AD and the DNS server running on my Domain Controller.
2. ESXi Config.HostAgent.plugins.hostsvc.esxAdminsGroup is correctly set to my AD group that contains my admin account. The AD group is SA Admin Accounts
3. lwsmd and the associated dependency services are running on the ESXi host.
4. The ESXi firewall is configured to allow Active Directory All Incoming TCP port 2020 and Outgoing TCP ports 88,139,389,445,454,3268,7475 UDP ports 88,123,137,389,464. The allowed IP addresses on the firewall are set to All
5. The ESXi Active Directory Service is Running.
6. Lockdown mode is disabled on all ESXi hosts.
I don't know what else to check. Everything appears to be in order but I can't login to the ESXi hosts using the web client (version 6.7.0 obviously) with my AD credentials. The ESXi hosts have had additional security checks configured in Advanced System Settings, but I've checked everything that appears to be associated with AD authentication. What am I missing?