mohammedben - 9 hours ago

hi,
When I try to establish communication between CODESYS and Fuxa SCADA via OPC UA, the connection fails, and I receive the following error:
2026-02-15T08:38:13.618Z [ERR] 'codesys' connect failure! Error: The connection may have been rejected by server,
Err = (ClientTCP_transport6: socket has been disconnected by third party)
2026-02-15T08:38:13.619Z [ERR] 'codesys' try to connect error! Error: The connection may have been rejected by server,
Err = (ClientTCP_transport6: socket has been disconnected by third party)
2026-02-15T08:38:13.622Z [ERR] 'codesys' connect error! undefined (1)

Note that there are no problems when I establish communication with the UaExpert and OPC UA Client Simulator software.
I also previously tried communicating with RapidSCADA and received the following error: Endpoint with the specified security options not found. And when I try to connect with "none" in the security policy, I get this error: BadSecureChannelClosed

I have tried almost all the solutions available online and have not found a solution.

I hope you can provide me with a solution that solves this problem.
Thanks in advance