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Copy file name to clipboardExpand all lines: support/power-platform/power-automate/desktop-flows/ui-automation/ui-rdp-automation/cyberark-connection-not-supported.md
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# CyberArk connections aren't supported for RDP automation
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This article helps you resolve an issue where you can't connect to a machine through CyberArk when using Remote Desktop Protocol (RDP) automation in Power Automate for desktop.
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This article helps you resolve an issue in which you can't connect to a computer through CyberArk when you use Remote Desktop Protocol (RDP) automation in Microsoft Power Automate for desktop.
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## Symptoms
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When you try to connect to a machine through CyberArk by using RDP automation, the Power Automate agent for virtual desktops fails to establish communication with PAD and you receive the following error message:
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When you try to connect to a computer through CyberArk by using RDP automation, the Power Automate agent for virtual desktops doesn't establish communication with Power Automate for desktop, and you receive the following error message:
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> A device attached to the system is not functioning.
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:::image type="content" source="media/cyberark-connection-not-supported/rdp-connection-failed.png" alt-text="Screenshot showing the error message when attempting to connect through CyberArk.":::
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:::image type="content" source="media/cyberark-connection-not-supported/rdp-connection-failed.png" alt-text="The error message that you receive when you try to connect through CyberArk.":::
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However, when you connect directly to the machine by using RDP without CyberArk, the connection works as expected and PAD successfully communicates with the agent.
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However, when you connect directly to the computer by using RDP without CyberArk, the connection works as expected, and Power Automate for desktop successfully communicates with the agent.
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## Cause
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CyberArk creates a nested remote connection path, which interferes with the agent-to-desktop communication required for UI and browser automation. Power Automate for desktop doesn't support nested remote connections.
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CyberArk creates a nested remote connection path. This condition interferes with the agent-to-desktop communication that's required for UI and browser automation. Power Automate for desktop doesn't support nested remote connections.
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## Solution
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To resolve this issue:
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- Use a direct RDP connection to the target machine instead of connecting through CyberArk.
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-Ensure that the Power Automate agent for virtual desktops is running and properly registered on the machine.
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- Use a direct RDP connection to the target computer instead of connecting through CyberArk.
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-Make sure that the Power Automate agent for virtual desktops is running and correctly registered on the computer.
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