Existing [[Windows Active Directory (AD)|Active Directory]] implementations can use [[Entra ID]] features with hybrid join. These devices are joined to your on-premises Active Directory and registered with Microsoft Entra ID.
Microsoft Entra hybrid joined devices require network line of sight to your on-premises [[Domain Controller|domain controllers]] periodically. Without this connection, devices become unusable. If this requirement is a concern, consider [[Entra Join|Entra Joining]] your devices.^[https://learn.microsoft.com/en-us/entra/identity/devices/concept-hybrid-join]