Here are a few steps to troubleshoot Active Directory object permission issues:

1. Step 1:Identify who has permission to access or edit the object.
2. Step 2:Validate the permission inheritance settings for the object.
3. Step 3:Check the effective rights of the user or group that doesn't have access.
4. Step 4:Update/modify the object's permissions.
5. Step 5:Test the user access to the object.