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Connection lost between Unity Pro PC and PLC (M340) after log off a session.
Goals and Symptoms
Connection lost between Unity Pro PC and PLC (M340) after log off a session. The USB cable must be disconnected then reconnected to re-establish the connection.
Facts and Changes
When a log off session occurs the Remote Access Service (RAS) are automatically closed.
Causes and Fixes
It is possible to change it by configuring the registry key KeepRasConnections.
Open Registry (RUN / regedit)
Go to HKLM\Software\Microsoft\WindowsNT\CurrentVersion\Winlogon
The KeepRasConnections string already exists.
Put the value data at 1. To do that:
-
- Select the line "KeepRasConnections"
Click the right button of the mouse >> Modify / Value Data then write 1
- Select the line "KeepRasConnections"
The KeepRasConnections string does not exist.
Add KeepRasConnections To do that:
-
- Go on Winlogon directory
Click the right button of the mouse >> New / String Value then write KeepRasConnections. Take care to respect the syntax (Upper case/lower case).
Put the value data at 1.
- Go on Winlogon directory
Released for: Schneider Electric Vietnam
