please help me .. my wan IP was changed so i try to update it but cannot be scanned

i did opened port in my router for tcp and udp also i did allowed both port in my firewall so what should i do please cause i get sick of deleting my server and add new one cause i lose rank each time i readd new server

http://www.gametracker.com/server_info/86.108.19.171:27015/manage/

Well, if your IP has changed, add the new server http://www.gametracker.com/servers/

If you don't want to have to re-add each time, make use of the DNS feature on the claim page so you just need to update the DNS.

hmmmmm thanks but one more thing please cause this is my first server so

what the DNS and what should i put in the DNS name box

It would be a domain or subdomain that you've setup. GameTracker does not provide DNS hosting or domain registration.

ok i am sorry to ask many questions but really i have no idea about domain or subdomain setup so can you just explain how to do all this here or some tuto on youtube or google or anything else please