As you see there are a lot of timeouts which means that WebIQ Server did not receive a reply from the OPC-UA Server: [2023-11-01 19:16:24.553834] [ debug | ctrlX_Core] read() failed [2023-11-01 19:16:24.553834] [ debug | ctrlX_Core] what(): BadTimeout This can be a network issue, the OPC-UA server is not running or it is overloaded at that time so much that it doesn't report a corresponding OPC-UA message indicating overloading. It would be interesting to know what happens if you connect to the OPC-UA server using UA Expert when the issue is occurring in the HMI.
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