subdirectory multisite in IIS 7.5

I’ve setup WP multisite with subdomain method recently and my domain looks like this: https://sub.domain.com so my sites would looks like *.sub.domain.com … (subdomain of subdomain) everything working well so far.

for this reason our SSL certificate which covers *.domain.com doesn’t support *.sub.domain.com So we decided to use sub directory method.

I changed wp-config.php multisite configs like this:

/* Multisite */
define( 'WP_ALLOW_MULTISITE', true );
define('MULTISITE', true);
define('SUBDOMAIN_INSTALL', false);
define('DOMAIN_CURRENT_SITE', 'staff.rightel.ir');
define('PATH_CURRENT_SITE', '/');
define('SITE_ID_CURRENT_SITE', 1);
define('BLOG_ID_CURRENT_SITE', 1);

and changed web.config rewrite rules:

<rewrite>
  <rules>
    <rule name="HTTP to HTTPS redirect" stopProcessing="true">
      <match url="(.*)" />
      <conditions>
        <add input="{HTTPS}" pattern="off" ignoreCase="true" />
      </conditions>
      <action type="Redirect" redirectType="Found" url="https://{HTTP_HOST}/{R:1}" />
    </rule>
    <rule name="WordPress Rule 1" stopProcessing="true">
      <match url="^index\.php$" ignoreCase="false" />
      <action type="None" />
    </rule>
    <rule name="WordPress Rule 2" stopProcessing="true">
      <match url="^([_0-9a-zA-Z-]+/)?files/(.+)" ignoreCase="false" />
      <action type="Rewrite" url="wp-includes/ms-files.php?file={R:2}" appendQueryString="false" />
    </rule>
    <rule name="WordPress Rule 3" stopProcessing="true">
      <match url="^([_0-9a-zA-Z-]+/)?wp-admin$" ignoreCase="false" />
      <action type="Redirect" url="{R:1}wp-admin/" redirectType="Permanent" />
    </rule>
    <rule name="WordPress Rule 4" stopProcessing="true">
      <match url="^" ignoreCase="false" />
      <conditions logicalGrouping="MatchAny">
        <add input="{REQUEST_FILENAME}" matchType="IsFile" ignoreCase="false" />
        <add input="{REQUEST_FILENAME}" matchType="IsDirectory" ignoreCase="false" />
      </conditions>
      <action type="None" />
    </rule>
    <rule name="WordPress Rule 5" stopProcessing="true">
      <match url="(^[_0-9a-zA-Z-]+/)?(wp-(content|admin|includes).*)" ignoreCase="false" />
      <action type="Rewrite" url="{R:2}" />
    </rule>
    <rule name="WordPress Rule 6" stopProcessing="true">
      <match url="^([_0-9a-zA-Z-]+/)?(.*\.php)$" ignoreCase="false" />
      <action type="Rewrite" url="{R:2}" />
    </rule>
    <rule name="WordPress Rule 7" stopProcessing="true">
      <match url="." ignoreCase="false" />
      <action type="Rewrite" url="index.php" />
    </rule>
  </rules>
</rewrite>

also changed site settings:
main site domain : sub.domain.com ; path: /
other site domain : sub.domain.com ; path: /hr

But now the problem is when I try to access sites https://sub.domain.com/hr it redirects me to not found page of main site, it behave like https://sub.domain.com/hr is a page that doesn’t exist instead of navigate to /hr site

can you please help me ?