== The easy way or hard way ==
  * Easy way: **Confiared can provide paid support** to help you. It's not free, but you have professional SysAdmin to fix your server.
  * Hard way: You can follow the next points to debug your self you server

== Check the IPv6 part ==
  * Check if you have configured IPv6 AAAA/CNAME entry in you DNS and it's on 2803:1920:XXXXXXX
  * Test via ping if it resolv on IPv6 address too (not only IPv4)
  * Test connectivity on IPv6, if you don't have IPv6, you can use our proxy: **sockproxyipv6.confiared.com:1080**
  * Check if from any 2803:1920:XXXXXXXXX you can access to you web server, you can you the proxy above

== Other part ==
  * Maybe the request is too long, to respect the mutualised ressources of reverse proxy, the request time without data is limited in time. You can bypass using IPv6
  * Maybe you server return error, then reverse proxy to prevent informations leak from any body, drop the error page