Hello there,
You can work around this by disabling the UDP session used by MSTSC on your affected computer (the one where they're running the Remote Desktop client).
-Run gpedit.msc.
-Navigate to Computer Configuration > Administration Templates > Windows Components > Remote Desktop Services > Remote Desktop Connection Client.
-Set the "Turn Off UDP On Client" setting to Enabled.
Similar discussion here https://social.technet.microsoft.com/Forums/en-US/7368be0d-318d-40d5-94c6-817ff5b739d6/windows-10-freezes-after-successful-remote-desktop-connection-is-established?forum=win10itprogeneral
Hope this resolves your Query !!
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