I am an IT guy. I have been for over 38 years. This seemed to be an easy thing to do. I thought, just connect my TV to the WiFi network and make sure my computer is on the same network. Well, I had my computer on the LAN and the TV on the WiFi on the same network and it didn't work. I discovered that it doesn't work that way at all. I had my WiFi disabled on the desktop, so I turned it on. I connected to the same WiFi and it worked. But then something strange happened that I didn't expect. The WiFi router went down and it still worked. Hmmmm. I discovered that I would try something. I changed my TV to connect using a Wire and there is no wire in the LAN connection on the TV. It still worked. Hmmm. I disabled the WiFi on my desktop and then it stopped working. Okay. I turned on the WiFi on my computer and forgot and disconnected all WiFi networks and it still worked. This told me that my computer initiates a completely independent WiFi network to connect to the television using Media Connect or Windows Connect. This is different than Microsoft Windows 10 Project. So, here are the rules to connect Windows 10 to a TV.

1. Turn on the TV (I had two to try. One was a Roku TV and the other was a Smart Philips TV)
2. Make sure the TV says to listen to Wireless Cast / Miracast / WiFi after I press the home key on the Philips (and do nothing on the Roku TV just turn that on)
3. Enable the WiFi on my desktop (or laptop)
4. I do not have to connect the TV or the desktop(or laptop) to the wireless network AT ALL
5. Click on the button to the right of the clock/calendar at the bottom right of the Windows Desktop  (or Windows Key+A and click Connect)
6. Click the Connect Button
7. Poof, there is the TV to connect to
8. Some TVs will ask permission to allow the connection. Some TVs do not ask.

Poof fixed.