@IT-ADMIN said:
i know that the best practice is to have one additional DC in the branch office, but unfortunately i still not have the skills to get that done, this project was not successful and i risked to damage the main DC because it seem that there was some kind of conflict between the 2 DC, now i'm thinking about having child DC in the branch office, this is my next plan, hoping that will be successful
best regard
Do you mean a child domain? There's very little reason to use a child domain unless there's a legal separation requirement between two business entities or you have so many computers that a single domain wouldn't be practical.