Proxy selection and PAC, proxy sign-in, TLS-inspection certificates, the server's SSRF guard and the database TLS floor. Everything below is set in config.ini or with the environment variable named beside it; the environment variable wins. Settings → Network shows what is in force on a machine and where it came from. The test reaches an address exactly as the AI model or a licence check would, and reports the proxy and certificate store it used, with a plain-language hint for the usual failures: an untrusted inspection root, proxy sign-in, DNS, or a firewall.
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