UPDATE: Roku is the answer. No WiFi needed (after initial setup). My Galaxy S7 can Wifi Direct/Miracast directly to the Roku stick using only my Mobile Data. The WiFi is not connected on the Roku and my Wifi is on, on the S7 but not connected to any network.
Wish I did this a month ago. Unlimited TMO data comes in handy.
Anyone rocking a new #Roku
Streaming Stick (3600R). I really need to find a solution to stream via Miracast from my S7 to a hotel TV. The hotel WiFi is horrible, and my S7 is getting 60-70 Mbps down so I want to use mobile data w/o hotspot or WiFi. I am not sure if I can connect to the Roku without having Wifi connected.
If someone has a better way let me know. Any suggestions welcome. #rockustick #miracast #tmo