Windows 10: cast/mirror to my ROKU TV does not work

Dell laptop with Win 11Pro. I called TV manufacturer and ROKU CS. Several things were tried with no luck. I was told to contact MS CS. When I try to cast, the progress bar shows at bottom of TV screen, but it does not progress at all.

:)

 

MIRROR CASTING FROM PC TO ROKU TV

My Roku TV is no longer found under WIRELESS DISPLAY but is now found under DEVICES AND PRINTERS/MULTIMEDIA DEVICE and I can't get my laptop (with Windows 11) to connect/ mirror cast to it. Please help.

 

Windows 10 not casting to Roku TV

I am trying to connect my windows 10 laptop via the action center and add devices. My TCL Roku tv does come up but when I try to connect it loads for a few seconds then says "unable to connect". I selected always allow screen mirroring on my roku tv and
have reset my tv, computer and router several times. When I try to cast from chrome it says the device is not supported.

 

Project (mirror) Laptop to TV using Roku

Have a new 2 in 1 (HP) running Win 10. Have Roku 3 connected to my TV. I want to mirror my laptop screen to the TV so I can display slideshows (Photoshop, ProShow). I have mirror enabled on ROKU.

When I go into Intel WiDi, I can connect to ROKU and there is a list of folders on my laptop screen. If I select a folder with photos, and double click on a photo, it shows up on my TV. However, this is not mirroring, I cannot run a slideshow and project
it to the TV, only a single photo at a time and only if I double click on it.

Any help would be GREATLY appreciated.