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Known problems:

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TwinCAT RT-Ethernet driver
If CP-Link 3 uses a network adapter which is configured as TwinCAT RT-Ethernet Adapter at the same time, this may result in dropped connection on high network usage.
Please use TwinCAT 2.11, Build 1552 or newer, beginning with this version this issue is fixed.

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Icons not visible
In certain cases icons of the host PC's desktop, or the pictograms for applications running on the host PC, are only partially visible on the clients display, if at all. This phenomenon is only observed on multi-monitor host PCs. In addition, only those clients that are displaying the screen content of the host PC's standard display device are affected. This is a known issue in the Microsoft operating system Windows XP.

Restrictions:

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Remote desktop

 

It is not possible to use CP-Link 3 Configuration in a Remote Desktop session.

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Realtime-Ethernet

 

If a network adapter of a CP-Link 3 client is used both for the CP-Link 3 connection as well as for real-time Ethernet, it is not possible to transmit the “Virtual Graphics” data by UDP. If only one network adapter is available for CP-Link 3 and real-time Ethernet, the “Virtual Graphics” data for the client must be transmitted by TCP (see also the Client Configuration section).

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Installation order of CP-Link 3 and TwinCAT
When installing CP-Link 3 or TwinCAT assure to install TwinCAT before CP-Link 3 (see also the Update of TcUsb.sys section).