Just a post with solution for a problem i struggled for some hours...
I tried to script creation of DFS target remotely. That was needed for the current workflow.
And after moving data to new server with all roles and permissions something broke.
Local commands like Get-DfsnFolderTarget and New-DfsnFolderTarget worked. But not with cimsession or in invoke-command or remote posh session to new server.
dfsutil returnet access denied too
Spending some hours... I've found similar old topics.
DFS Namespace Role was needed
Here suddenly resolved
The last one made me remember about refreshing DFS caches. They refresh by themself very rare and need a kick to refresh if something changes in DFS structure.
I run this command on server and my workstation and everything worked.
dfsutil.exe /spcflush