Ak potrebujes presnejsie tak je toho plny google, napr. http://stackoverflow.com/questions/9787934/firewal l-blocking-unblocking-a-port

To access the firewall: Press Start -> Type in "Firewall" -> Click on "Windows Firewall With Advanced Security"

You need to configure an inbound traffic rule, like so: 1. Right click "Inbound Rules" on the left pane 2. Choose "New Rule" 3. Choose "Port" 4. Under "Specific ports" enter your port number (8080) 5. Continue with "Next" until the end of the wizard, naming the rule when asked.

Check if your port is now accessible - you might need to restart the Windows Firewall service (under "Services").