So gonna go for the obvious here... in first picture you are on a phone.  Trying to connect to localhost... which means you do not remember the IP address of the SERVER since you are on your phone.  You did not install the server on your phone. With that, I will go out and say that on your PC, you are also trying to connect to local host.  I am willing to bet, that EMBY SERVER is not installed on that machine either.  There are clues... this PC is on WiFi... click the up arrow next the time