OPC tunnel cannot establish a connection under Windows 7 64bits (eliminated from V3.3.2)

Corrected from:
OPC tunnel V3.3.2

Behaviour of the new version?
Even under Windows 7 64bits, the OPC tunnel can use a connected controller to establish a connection to a node connected to the fieldbus interface of the controller.



What happens?
It is not possible to establish a connection by the controller via the OPC tunnel to a node connected to the fieldbus interface of the controller.

Example:
The EASY Starter is not able to establish communication via the OPC tunnel of the controller 3200 C to a 9400 HighLine which is connected to the controller 3200 C via CAN.

When does the problem occur?
The response described above may occur if the OPC tunnel is installed on a Windows 7 64-bit PC (depending on the selected safety settings of the operating system).

Which products are affected?
OPC tunnel from V3.1

Diagnostics options?
None

Short-term measures/recommendations?
None

Evaluation:
If the OPC tunnel is installed under Windows 7 64bits, it may happen that it is not possible to establish a connection by a connected controller.

URL for linking this AKB article: https://www.lenze.com/en-de/go/akb/201208936/1/
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