Problem with wp-cron

Hi there,
This link explains some issues regarding wp-cron.php:
https://comox.textdrive.com/pipermail/wp-hackers/2008-September/021592.html

Especially this part might be of interest to you:
“For whatever reason, a
surprising amount of webservers are not configured to be able to
resolve their own addresses, or they have some kind of routing issue
with hitting themselves this way, or there’s a security rule blocking
it, or one of half a dozen other things.”