SQL Server 2008 R2 Error 15401 when trying to add a domain user
- by Alice
I am trying to add a domain user. I am doing the following.
Expand Security
Right click on Logins
Select New Login...
Login name select search
Click on location and select entire directory
Type username
Click checkname
The name goes underlined and add some more info
Click OK
Click OK
I then get the following error:
I have found http://support.microsoft.com/kb/324321.
The Login does exist
There is no Duplicate security identifiers
Authentication failure I don't think is happening as I can browse AD
Case sensitivity should not be the problem as I am doing the checkname and it is correcting it.
Not a Local account
Name resolution again I can see the AD
I have rebooted the server (VM) and the issue is still happening. Any ideas?
Edit
I have also:
Domain member: Digitally encrypt secure channel data (when possible) – Disable this policy
Domain member: Digitally sign secure channel data (when possible) – Disable this policy
Rebooted server
http://talksql.blogspot.com/2009/10/windows-nt-user-or-group-domainuser-not.html
Edit 2
I have also:
Digitally encrypt or sign secure channel data (always)- Disabled
Rebooted
Edit 3
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