[Samba] Add workstation to domain(nt style) - user to do that?

[lejeczek]

hi guys,

I had a user (as I understand root should/must not be used for that) 
which is in "domain admins" group(ldapsam backend) which now(it worked 
for many years) with win10 fails, at Win10 end's:


"The join operation was not successful. This could be because and 
existing computer account having name 'win7' was previously created 
using a different set of credentials. Use a different computer name, or 
contact your administrator to remove any stale conflicting account. The 
error was:

Access is denied."

Which would make sense if there was 'win7' computer in the domain but I 
cannot confirm that is true, the opposite, no such computer in the domain.

How to start troubleshooting this?

Many thanks, L.