Hello
Thank you for your question and reaching out.
I can understand you are not able to add another Node in ADFS.
You could try below steps to resolve the issue.
- Change Logon Domain controller do Different DC as below command.
nltest /SC_RESET:mydomain.com\srv001
- Please try to create new ADFS server with New Name as it may happened due stale or Orphne records of Old ADFS server in the AD.
- Disable any Antivirus program or Windows firewall you may have for temporary purpose.
- Please verify AD health is Good and DATE and Time are synced your Domain controller.
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