I just deployed ArcGIS Enterprise 11.3 on a client server machine. The ArcGIS Pro on the server machine was able to open but as soon as i tried using another computer machine that is on the same network with the server machine it is giving this error code: ArcGIS Pro failed to connect to the license manager. I have opened the TCP port 27000-27009 for license manager yet I'm getting this error. But as I turned off the server machine firewall, I was able to open ArcGIS on another computer machine.