Disabling UDP usage can sometimes resolve issues, notably those related to Remote Desktop Manager hanging during the log-off process of an RDP session. You can disable it via Remote Desktop Manager or via the registry.
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Run Remote Desktop Manager as an administrator.
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In the ribbon, go to Tools – More tools.
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Select the Local RDP/RemoteApp Manager from the tools list.
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Disable UDP settings.
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In Remote Desktop Manager, first ensure RDP API hooking is enabled in File – Settings – Types – Sessions – Remote Desktop (RDP) – Enable API hooking. Save your changes if applicable.
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Select your RDP entry and go to its properties.
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In the General section, go to the Advanced tab and set Disable UDP transport to Yes.
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Click Update to save your changes.
In the Registry Editor, navigate to
HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services\Client.Create a DWORD named
fClientDisableUDPand assign it a value of1.
Consult this Microsoft support article for more information: Windows registry information for advanced users.
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