Hi  @Agustinc1913 ,

If K2 Setup Manager does not detect AD, you would usually select SQLUM as your default user manager.

• For information on SQLUM users, please see: 
  
  
  
  • Adding, Editing and Deleting SQL User Information
  
  
  
  


• If you would prefer using a different UM, please see:
  
  
  
  • Changing the default User Manager
  
  
  
  


• Lastly, if you require creating a "Dev" role, please see: 
  
  
  
  • Roles
  
  
  
  

Additional information:

• A similiar question has also been asked before, this post also has some useful links and information that I would suggest you take a read through:
  
  
  
  • How to authenticate users without Active Directory
  
  
  
  

Hope this helps!