Azure AD Connect Services

Azure AD Connect, now Microsoft Entra Connect, is the synchronization service that links your on-premises Active Directory with Microsoft Entra ID. It keeps user accounts, groups, and passwords consistent across your data center and the Microsoft cloud, so employees use one identity to reach both on-premises resources and cloud services like Microsoft 365 and Azure. For any organization running a hybrid environment, Azure AD Connect is the component that makes identity work as a single system.

Although Microsoft provides the tool, a production-grade Azure AD Connect deployment involves real architecture decisions: which authentication method to use, how to handle high availability with staging servers, what to synchronize, and how to monitor health. Getting these right means seamless single sign-on and reliable access; getting them wrong means sync errors, lockouts, and security exposure. ARC implements, hardens, and manages Azure AD Connect, and, where it fits, helps organizations move to the lighter-weight Microsoft Entra Cloud Sync, so hybrid identity is dependable and ready for the cloud.

Azure AD Connect delivers the core of hybrid identity on the Microsoft platform:

• Directory synchronization. Users, groups, and attributes from on-premises Active Directory stay in sync with Microsoft Entra ID.
• Authentication methods. Password hash synchronization, pass-through authentication, or federation, selected for your security and availability needs.
• Seamless single sign-on. One identity and a smooth sign-in across on-premises and cloud resources.
• Filtering and scoping. Control precisely which objects and attributes synchronize to keep the cloud directory clean.
• Staging servers and resilience. High-availability configurations so identity synchronization survives a server failure.
• Health monitoring and upgrades. Microsoft Entra Connect Health plus a managed upgrade and migration path, including a move to Entra Cloud Sync where appropriate.

Common use cases include enabling Microsoft 365 and Azure on top of existing Active Directory, supporting hybrid workforces, building resilient identity infrastructure, and modernizing from legacy DirSync/ADSync or to Cloud Sync.

ARC delivers Azure AD Connect as a managed, production-grade capability:

Assessment and design. We review your Active Directory, domains, and security needs, then choose the right authentication method and topology, including staging servers for resilience.

Installation and configuration. We deploy Azure AD Connect with correct filtering, attribute mapping, and high availability so synchronization is clean and dependable.

Single sign-on and security. We enable seamless SSO and harden the sync infrastructure so identity is both convenient and secure.

Health monitoring. We set up Entra Connect Health and alerting so sync issues are caught and resolved before users are affected.

Upgrades and Cloud Sync migration. We keep the connector current and, where it fits, migrate you to the lighter-weight Microsoft Entra Cloud Sync to simplify operations.

Path to cloud-only. When dependencies allow, we help plan a safe transition toward cloud-only identity.

Reliable hybrid identity is built on disciplined fundamentals. ARC applies these:

• Pick the right authentication method. Align password hash sync, pass-through authentication, or federation to your security and availability requirements.
• Build for high availability. Use staging servers so a single failure never breaks authentication.
• Filter and clean first. Synchronize only what you need, and resolve duplicate or stale objects before they reach the cloud.
• Monitor proactively. Watch Entra Connect Health and act on alerts early.
• Keep current. Stay on supported connector versions and evaluate Entra Cloud Sync to reduce operational overhead.
• Plan the cloud path. Treat hybrid as a stage and maintain a roadmap toward simplified identity.

ARC is a 3x Microsoft Solutions Partner with deep Azure, Microsoft Entra ID, and hybrid identity expertise. With 13+ years of experience, 300+ engagements, and 100% client retention, we implement and manage Azure AD Connect so hybrid identity is secure, resilient, and ready to modernize. Recognized on the Inc. 5000 (#749) and Inc. Regionals (#57) with 557% growth, ARC delivers AI-powered Microsoft solutions from our Chicago (Bolingbrook, IL) and Karachi offices, with responsive support across time zones.