I have a desktop PC (Windows 10) located in an upstairs bedroom and want to mirror the display to a TV downstairs in the living room.
The PC is connected to a Plusnet One hub/router using Gigabit wired Ethernet.
The TV connects to a Roku Express 3900 stick using HDMI.
The Roku connects to the router using a 2.4GHz WiFi channel.
Normally WiFi on the PC is turned off since it uses wired ethernet.
After reading up about Roku mirroring I discovered that it only works if I enable WiFi on the PC. The WiFi channel does not need to be permanently connected to the network. Apparently it's only required for the initial device discovery phase. If I do manually connect it to the router over WiFi, it does so over a 5GHz channel. It seems to make no differemce.
With the PC WiFi enabled and not connected, I can run a browser on the PC and mirror the display to the TV. So far so good.
The problem comes when I try to use a VPN to connect the PC to the internet.
When I launch the VPN (I use Proton VPN) , the Roku stick / TV display disconnects.
I have been unable to figure out how to get it to reconnect while the VPN is actve.
Is there an easy solution?
I have read that it may be possible to create a WiFi hotspot on the PC and use that to connect to the Roku stick.
Is there a simpler way?
