Instance is not GlassFish Server 3+ or it is not running, Deployment error: GlassFish Server 3+ Server cannot start. Port is occupied

Instance is not GlassFish Server 3+ or it is not running, Deployment
error: GlassFish Server 3+ Server cannot start. Port is occupied

I keep getting these errors
Using netbeans 7.2.1, glassfish 3.1
I looked at numerous posts for this problem, but nothing seems to work
Shanged port in \glassfish\domains\domain1\config to 9999, after that
first project deployment and running was fine, but after that the same
project and others gave again these errors at deployment.
running netstat -aon | find ":80" | find "LISTENING" in cmd gives no
results or sometimes java.exe process pid
what else can I do to fix it? Thanks