We have windows server 2016 installed with ADDS running on it. Last year they have upgraded the server from Windows 2008 R2 to Windows 2016 during this process they have renamed the server name eg:test (old server name) to test1. Now in our ADDS if groups inside "builtin" container are added in NTFS permission on a folder shows new domain name eg: test1\Users,but when Domain Admin group in "Users" container added to NTFS shows test\Domain Admins(olddomain name).But the members of Domain Admin group are not able to access the folders though the group as full previledges on the folder. When same user added to Users group inside the Buildin container the members are able to access it. I predict this is because of the naming conflict between the two container and I am not really aware of the process they have taken during the migration.Please provide your valuable advice and on how to approach this issue.