Hello, I have the same trouble. But even when I use your project xxx with the user and role, I got the same message when going to monitor mode. (Connection to OPC UA server not possible. (For more details please refer to the help.)) I am desperate. I do not know what to try next.

Hello Christopher, thanks for this link. The issue was as described in that link - the port 4840 was used by other process. I just changed it to 4841 and it works now.

Port conflict causing OPC UA failure

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marcel.voigt (Marcel Voigt) November 9, 2025, 9:35pm 2

I just posted on a different question but sounds like you have a similar issue and the OpcUa server is not enabled.
Please check

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Port conflict causing OPC UA failure

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