i can't open ports bigger than 9999

Hello, When i try to open a port bigger than 9999 is not working, i have a webserver i put on port 11211, i create an inbound rule in firewall for this port, i create a rule in security group to accept connection on this port but the port is still close. When i change port with a port from range 1024-9999 and i made same settings is working.