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The Windows 10 firewall on the target machine and any network firewalls between your administrator machine and the client must allow traffic through specific ports. Ensure the following TCP port is open:
: In the SCCM Client Settings under Remote Tools, explicitly define an Active Directory security group of "Permitted Viewers." Only accounts in this group should be allowed to use CmRcViewer.exe .
Under , enable the following:
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For the tool to work, you must enable the feature within the Microsoft Configuration Manager console and deploy the policy to your Windows 10 clients.
: Allows administrators to view and take full control of a user’s desktop to perform maintenance or troubleshooting.
Ensure the target Windows 10 computer is powered on and connected to the corporate network (or active on VPN). Try pinging the host name to verify DNS resolution is working properly. 2. Firewall Blocking the Connection
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However, SCCM remote control remains superior for:
If you choose to fallback or switch to standard Remote Desktop (RDP) from within the viewer.
3. "You do not have permission to remotely control this computer."
At its core, the system relies on several key components working in concert. The SCCM client agent must be installed and healthy on each managed Windows 10 device. The remote control service (CmRcService) runs on client machines, listening for incoming connection requests. The remote control viewer (CmRcViewer.exe) serves as the client-side tool for initiating and managing remote sessions. Finally, the configuration policies dictate access permissions, notification behaviors, and security parameters. Ensure the following TCP port is open: :
If you are managing a Windows 10 environment, you know that the ability to remotely troubleshoot endpoints is not just a luxury—it is a necessity. While tools like TeamViewer or Remote Desktop Protocol (RDP) have their places, Microsoft Endpoint Configuration Manager (formerly System Center Configuration Manager or SCCM) offers a powerful, integrated solution: .
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Additional configuration options available during this process include selecting which network profile exceptions the Windows firewall should automatically create for remote control traffic—specifically Domain, Private, and Public options. For typical enterprise environments where managed devices operate within domain-joined networks, administrators should select the Domain option.