Hi and TIA,
HQ - Server 2016 Standard, fully patched.
Camp 2 - Server 2016 Standard, fully patched
HQ server is syncing a different folder, same namespace with a server at Camp 1.
Servers from Camp 1 and 2 were off line for months. Brought Camp 1 on line, would not sync AD or DFS. Removed DFS, AD and demoted server. reinstalled AD, promoted and DFS. The server works fine.
Brought up Camp 2 server, went through the same process as Camp 1. Ad syncs fine, DS will not sync.
The only thing that has been done differently is the server at Camp 1 had its name changed before being re-promoted, Camp 2 did not.