[4356] - The connection was ended because of a network error.

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Symptoms

Starting a Published Application you get the error message:

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Connecting to Terminal Server in Native RDP Client (mstsc) causes the error message to appear:

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Cause

RDP Port is used by another application.

Resolution

To figure out which application listening to RDP port (by default 3389) execute the following command:

    netstat -abno | find "%RDPPortNumber%"
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You may check port RDP port number in registry entry:

    HKLM\SYSTEM\CurrentControlSet\Control\TerminalServer\WinStations\RDP-Tcp\PortNumber

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