Tomorrow 23:30 GMT+1, the hoster will change the router to avoid the udp floods/loss of service you may have experienced the last two days.
I don't know how long it will take, but the server will remain "online" during that time, meaning that FAF will be accessible once the new router is online.
Forums will be down too, but you can follow https://twitter.com/#!/Ze_PilOt for extra informations (if needed).
Thank you for your comprehension.