i had no problem hosting in wormnet but for the last 2 months i cant host no more.. i have my router set up from lastyear 6667/17011 and so on but whats happened??

Most likely due to a dynamic external or LAN IP changing. Follow the hosting guide to fix your hosting and to prevent this situation in the future: http://worms2d.info/Hosting_Guide

Also, you only need to forward port 17011 TCP on most routers.