Cannot login to SQL Server as a member of AD group I have created a login for an AD group:

CREATE LOGIN [MYDOMAIN\Development Admins] FROM WINDOWS WITH DEFAULT_DATABASE=[master]


One of the members of that AD group is a user named DBGuy. I can see the DBGuy user in this AD group if I execute 

xp_logininfo 'MYDOMAIN\Development Admins', 'members'


But if I try to login using the DBGuy account, I get an error:


  Error Number: 18456
  Severity: 14
  State: 1
  Line Number: 65536


And in the error logs I see:


  Login failed for user 'MYDOMAIN\DBGuy'. Reason: Could not find a login matching the name provided. [CLIENT: 192.168.50.127]


Some other info.... 


Other AD accounts seem to work fine as Windows logins, I am only
having an issue with this group.  
I found an article from Aaron Bertrand
describing a similar issue regarding the default database in the
connection- I have set the default database to master in the
connection settings.
One blog post suggested using exec sp_change_users_login Report to look for orphaned users; this returns zero rows for me.
This is an old thread, but it was the first hit on Google when I encountered the same issue.

My two cents:
In my case it turned out that the AD group was a Distribution group, instead of a Security group, hence it could not be used to grant access to SQL Server.