I had the same issue lately and you need to configure WP_REDIS_PREFIX in wp-config.php define( ‘WP_REDIS_PREFIX’, ‘your_unique_key_for_each_wp_instance_’ ); for each WP site. This solved my case.
To display a custom error page for 400 errors on an Nginx server, you can try and use a custom error page. This could be an HTML page with the content you want to show to users when they hit a 400 error. Once you have created the custom error page, you will need to … Read more
I found it. I guess WP Engine uses a random database table name prefix rather than this default in wp-config.php: $table_prefix = ‘wp_’;
I found a solution…thanks to a friend (DM you know who you are!) !!! The solution is to replace the last line with: RewriteRule ^/?$ /it/index.php [L]
I have resolved my issues by reviewing the Redis Cache plugin installation guide and making the following changes inside the wp-config.php files on each WordPress installation. The define( ‘WP_REDIS_PREFIX’, ” ); was added with the values set as production, staging, and beta for each respective site. The define( ‘WP_REDIS_DATABASE’, 0 ); values for the staging … Read more
Cant access subdomain after multisite subdirectory install
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So Im posting the answer if that helps anyone. It turns out all my issues where coming from a failed wordpress auto update to 6.5.4. after forcing the update everything came back to normal
WordPress multisite with subdomains behind nginx reverse proxy using subdirectories