“HTTP ERROR 403” page appears when submit a comment

Hi @zhenhomework

Can you please try disabling one by one below features? It might be one of the firewall rules is making an issue. 

1) Deny bad query string – WP Security > Firewall > PHP rules tab. – URI security – Deny bad query strings: uncheck the checkbox and save

2) Advanced char filter – WP Security > Firewall > PHP rules tab. – String filtering – Enable advanced character string filter: uncheck the checkbox and save

3) 5g firewall rules – WP Security > Firewall > 6G Blacklist firewall rules tab. Enable legacy 5G firewall protection uncheck the checkbox and save

4) 6g firewall rules – WP Security > Firewall > 6G Blacklist firewall rules tab. Enable 6G firewall rules – uncheck the checkbox and save

If still an issue. Please add the below constant in wp-config.php and check

define( 'AIOS_NO_FIREWALL', true);

Regards

Thank you for your reply.
I have tried the four options mentioned above, but the situation remains unchanged.
Additionally, I don’t have any experience editing the wp-config.php file. Could you advise me on what steps I should take next?

Hi @zhenhomework,

You can cross-check the below link for how to add that constant.

define( 'AIOS_NO_FIREWALL', true);

https://www.eukhost.com/kb/how-to-add-constants-to-your-wp-config-php-file/

Regards