Ok, it’s hard for me to tell when you are pressing T, but it should be on the listening server, I think you might be doing it from the connected client. Also to make sure that your client connected to the server, you can open the full console by pressing ~ twice, and when the client connects, you should see it’s name showing up in the console.
First make sure that you are actually connecting to the server, then make sure that you are pressing T on the server window, after the client has connected.
Also, from my own experience, doing this on the same machine doesn’t work half the time. It seems you are using a Rift headset but with a Vive, you can’t open two VR application at a time. So if you can, try to use a different computer connected to the same network.