Hello, I'm using TIA Portal v18 Upd 3. Attempting to simulate a unified HMI in the project. Within the simulation dialog window, attempting to connect to 127.0.0.1 which is the default selection, but it says 'failed to establish a connection to device with address 127.0.0.1' which is the localhost. I have also tried using the device name (DNS) connection option with input text 'localhost'.

On the other hand, when I open up a web browser and go to https://localhost/ it launches the Siemens RT app in the browser just fine.

Another potential connected issue is when I run the SIMATIC Runtime Manager, I get a 'general error during processing' in the status bar.

I am also facing the same problem. I’m using TIA Portal V19. After getting the "General error during process" message, I updated to TIA V19 Update 3, but I’m still facing the same error. Then, I updated to TIA V20, and I’m still experiencing the issue.

I also configured the certificate, but after some time, the runtime file disappears, and I get a message saying the certificate cannot be read under the "Certificate" section in Runtime