Can't connect to webvisu, ERR_CONNECTION_REFUSED

2022-08-14T08:59:51.356000Z

Hi, I have a same problem. I'm using Eurotherm E+PLC 100 and codesys V3.5 SP15 patch3. Cannot get webvisu to work.
Could you please help me how to add webserver and OPC-UA into my program?

Can't connect to webvisu, ERR_CONNECTION_REFUSED

2022-02-28T09:28:56.674000Z

Okay I found the problem. In case someone else has it ..

I had to add a webserver component under one of the ethernet adapters (and OPC-UA server also has to be added manually). I can't remember that being necessary in any other brand of PLC, adding a webvisu usually adds whatever is necessary.
But it's mentioned in the docs. So that's just another RTFM case.

Can't connect to webvisu, ERR_CONNECTION_REFUSED

2022-02-25T11:30:25.718000Z

Hi,

I have a project with web visualization, but can't connect to it.
PLC is ABB AC_500v3 PM5630-2ETH, Codesys version is 3.5.15 (ABB Automation builder 2.4).
I tried connecting from different computers with different browsers, but it doesn't work. Chrome shows ERR_CONNECTION_REFUSED, other browsers show similar messages. I tried all possible forms of webvisu URL with port 8080 or without port, http:// or https:// , with or without webvisu. htm at the end etc.
Time of PLC and PCs is correct

It's not a connectivity problem, I can ping the PLC, go online from Codesys IDE etc.
There is WebServerTask running in the PLC, and it the log(attached) everything seems OK except for this line:
TlsCreateContext: The given namespace 'WebServer' was not found in config file.

What the problem could be?
Thanks for any hints.

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