Problem with UDP ports?

I tried to open UDP port so I could set up "counter-strike" server.I don't know if it's even needed,but I forwarded port I want to use(both UDP and TCP) just in case.I have no firewalls,I turned off windows native firewall too.But for some reason when I launch the program and try to see if the port is open canyouseeme.org shows "Connection refused".TCP ports(for torrents) work great.Any suggestions?