WordFence in Siteground: How to Handle Subdirs

Greetings!

I run two WordPress installations on one SiteGround server:

https://redtailhawk.us/wp/

–and–

https://redtailhawk.us/trails/

Note there is no WP installation at the root (https://redtailhawk.us)

I installed [free] WordFence on both sites above. I then did the “Siteground trick” by adding the recommended path to wordfence-waf.php using the auto_prepend_file at public_html. I also threw the “All subdirectories” switch.

The firewall works fine on the /wp site but does not work on the /trails site.

I have used the diagnostic tools and can confirm the following is true on *both* sites:

(a) CGI/Fast CGI
(b) Loaded configuration file = /home/redtailh/public_html/php.ini
(c) Auto prepend file = /home/redtailh/public_html/wp/wordfence-waf.php for both “local” and “master”

Finally, I used FTP to confirm that there is a wordfence-waf.php file in each of the three directories (root, /wp and /trails)

I would like to get things running on the /trails site. Any help will be much appreciated!

Thanks.

Mark MacAllister