Adding Settings to Network Admin

I’ve got this successfully working with the general options, however I’m struggling with getting this working on the network admin page.

When I go to wp-admin/network/settings.php my options aren’t shown and there’s no errors.

This is all in a class and is run on the network_admin_menu hook.

Any help will be gratefully received especially it’s before I pull all of my hair out. ??

    /**
     * Initialize the fields used for settings.
     *
     * @since    1.0.0
     */
    public function init_fields() {

        add_settings_section(
            'configurator_settings_section', // ID
            'Configurator Settings', // Title
            array($this, 'print_configurator_section_info'), // Callback
            'settings.php' // Page
        );

        add_settings_field(
            'configurator_access_key', // ID
            'AWS Access Key', // Title
            array($this, 'configurator_access_key_callback'), // Callback
            'settings.php', // Page
            'configurator_settings_section' // Section
        );

        add_settings_field(
            'configurator_secret_access_key', // ID
            'AWS Secret Access Key', // Title
            array($this, 'configurator_secret_access_key_callback'), // Callback
            'settings.php', // Page
            'configurator_settings_section' // Section
        );

        register_setting(
            'settings.php', // Option group
            'configurator_access_key', // Option name
            'esc_attr'
        );

        register_setting(
            'settings.php', // Option group
            'configurator_secret_access_key', // Option name
            'esc_attr'
        );

    }

    /**
     * Print the Section text
     */
    public function print_configurator_section_info() {
        print 'Enter the settings for the Configurator.';
    }

    /**
     * Get the settings option array and print one of its values
     */
    public function configurator_access_key_callback() {
        printf(
            '<input type="text" id="configurator_access_key" name="configurator_access_key" value="%s" size="50" />', esc_attr(get_site_option('configurator_access_key'))
        );
    }

    /**
     * Get the settings option array and print one of its values
     */
    public function configurator_secret_access_key_callback() {
        printf(
            '<input type="text" id="configurator_secret_access_key" name="configurator_secret_access_key" value="%s" size="50" />', esc_attr(get_site_option('configurator_secret_access_key'))
        );
    }