Hi,

I am using WinCC OA 3.20. I have loaded demo project - DemoApplication_3.20

I am facing issue while starting the OPC UA Server. I am getting following error logs -

WCCOAopcuasrv(1), 2025.03.06 17:07:56.177, SYS,INFO,        3, Trying to connect to (SYS: 0 Data -num 0 CONN: 1) @ localhost:4897

WCCOAopcuasrv(1), 2025.03.06 17:07:56.186, SYS,INFO,        4, Connected to (SYS: 0 Data -num 0 CONN: 1) @ PRAMOD-LAPTOP (::1)

WCCILdata    (0), 2025.03.06 17:07:56.186, SYS,SEVERE,    229, The Manager MAN: (SYS: 0 Device -num 1 CONN: 1) is already running at host localhost.

WCCOAopcuasrv(1), 2025.03.06 17:07:56.186, SYS,SEVERE,    229, The Manager MAN: (SYS: 1 Data -num 0 CONN: 1) is already running at host localhost.

WCCOAopcuasrv(1), 2025.03.06 17:07:56.188, SYS,INFO,       39, Connection lost, MAN: (SYS: 0 Data -num 0 CONN: 1), Connection closed

WCCOAopcuasrv(1), 2025.03.06 17:07:56.189, IMPL,FATAL,       5, Connection not possible, WCCILdata

WCCOAopcuasrv(1), 2025.03.06 17:07:56.190, SYS,INFO,        2, Manager Stop

Not sure, What is the issue.

Please help.

Thanks in Advanced!

-Pramod

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Split from WinCC OA OPC UA Server Problem.