Thanks @weltenraum, and sorry for the delay.
The traceroute looks good. A few options:
First, you could try increasing your max_execution_time on your configuration. Currently, it is set to 30. Increasing that to 60 to see if a manual refresh of the rules works may be a good first step. If it fails and rules do not update over the next day or so, you could reduce that back to your current setting.
The second option is trying the MySQLi storage engine. This will store the rules and firewall configuration (wflogs) in the database rather than the file system.
Here is our documentation on setting that up:
https://www.wordfence.com/help/firewall/mysqli-storage-engine/
Basically, for that, you will need to add this to your “wordfence-waf.php” file:
define('WFWAF_STORAGE_ENGINE', 'mysqli');
When you add that, give it a few moments and check your Wordfence > Tools > Diagnostics area in the Wordfence Firewall Current WAF Configuration section, check the Active WAF storage engine field to see if it says file system or MySQLi storage engine.
If it has switched to MySQLi, try updating the rules again manually from the Wordfence > Firewall > All Firewall Options > Rules area.
Thanks,
Scott