khey Posted March 21, 2017 Report post Posted March 21, 2017 Hi guys, We are trialing Windows Server 2016 at the moment and experience slowness in resolving AD objects. At times, the domain objects are not searchable. Both issues above happened to two of Win Server 2016 that we are trialing. Port 389 is opened and also have tried with Windows Firewall being turned off. Anyone else experiencing the same issue? Thanks Quote Share this post Link to post Share on other sites More sharing options...
Rocket Man Posted March 22, 2017 Report post Posted March 22, 2017 Have so far promoted 4 2K16 DCs to an existing forest and all seems fine in terms of ADDS replication/services/search etc etc.. What is the machine above you are querying from? Is it the DC on server 2016? Looks like machine you are querying from is not authenticated to domain fully - or the unknown users are no longer existent or are from an old domain? Quote Share this post Link to post Share on other sites More sharing options...
