We had a DNS issue in one of the DC running active directory integrated DNS service and it caused our vCenter to fail to connect the domain in AD so we have changed the DNS to the IPs which is working properly but identified still AD authentication getting failed and in the VAR\LOG\Messages it was still pointing to the problematic DC and failing to authenticate.
After a few research got the instruction from the VCSA6.7 U3b release notes about the steps to blacklist the DCs and added the problematic DC IP as mentioned below.
Continue reading “Steps to blacklist the problematic DCs in VMware VCSA 6.7U3”