The documented ways to do authentication with Proxy, e.g. setting system properties or Authenticator handler like below, works in the sense that it tries to use the proxy, but does not perform the authentication. Doing the same for an http connection works so must be specific to http connection implementation. netty has ProxyHandler and an authentication scheme (https://netty.io/4.1/api/io/netty/handler/proxy/ProxyHandler.html) but not sure how to apply it when setting up the remote driver

        System.getProperties().put("http.proxyHost", proxyHost);
        System.getProperties().put("http.proxyPort", proxyPort);
        System.getProperties().put("http.proxyUser", proxyUser);
        System.getProperties().put("http.proxyPassword", proxyPassword);

        System.getProperties().put("https.proxyHost", proxyHost);
        System.getProperties().put("https.proxyPort", proxyPort);
        System.getProperties().put("https.proxyUser", proxyUser);
        System.getProperties().put("https.proxyPassword", proxyPassword);

        Authenticator.setDefault(new Authenticator() {
            public PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication(proxyUser, proxyPassword.toCharArray());
            }
        } );

        WebDriver driver = new RemoteWebDriver(new URL("http://10.0.0.1/wd/hub"), options);

no log output