Hello! My name is Cristiano. I'm an Independent Advisor. I'm glad to help you.
It's great that you've already searched for solutions online and tried a few things like resetting your PC and changing your DNS address. Let's see if we can find a solution together.
Have you tried updating your Windows 10 version to the latest one available? Sometimes new updates include bug fixes that can help with issues like this. You can check for updates by going to Settings > Update & Security > Windows Update.
Another thing to check is whether your wireless adapter driver is up to date. You can check for updates in the Device Manager by right-clicking on your wireless adapter and selecting "Update driver." If there are any available updates, install them and then try reinstalling the Wireless display feature.
If those steps don't work, you could try running the Windows Update Troubleshooter or the Network Adapter Troubleshooter to see if they can identify any issues.
I hope this helps!