Does anyone have any experience with setting up the automated telemetry on NetScaler Console? The proxy is set, the proxy allows the correct URLs, but the run diagnostics still fail without any useful information. Is there logging somewhere for this process?

Have you checked the firewall for outbound connections?

I checked the Palo Alto firewall and see traffic between the proxy and NetScaler Console. So it could also be the proxy itself. But you would expect some more info on the NC side as well.