yesjoke // pool.dokdocoin.org is woring fine. did you input your New wallet address Nxxxx~~~ ? Dxxxx~~~ is old Dokdocoin address so you must enter new wallet's address. and if you set your mining config as groestl, you should use port 3111 for groestl. offical pool port 3000 is for old scrypt miners. check it again please. thanks.