Hi, Digitalblizzme
Welcome to the Microsoft Community.
I'm sorry to hear that you're having trouble with your device. Based on the information provided, it seems like there might be an issue with accessing protected content or logging in. Here are a few steps you can try to resolve the problem:
- Allow Cast to Device functionality on your PC
- Click the Start button, type Allow an app through Windows Firewall in the search box, then press Enter.
- Locate Cast to Device functionality, Connect/Connected Devices Platform.
- Check the box for Private & Public > OK.
- Add the Wireless Display optional feature
- Click the Start button and select Settings.
- Click on Apps from the left and select Optional features from the right.
- Click on View features to the right of the Add an optional feature menu.
- Type in wireless display, check its box, and click the Next button below.
- Lastly, hit the Install button.
- Adjust the Pairing setup
- Press Windows + I to open the Settings app.
- Select System from the left pane and click on Projecting to this PC on the System menu.
- Click the first text bar on the Projecting to this PC window and select Available everywhere.
- Turn on Private and Public networks in Windows Firewall
- Left-click Start to prompt the Start menu and select Settings.
- Select Network and Internet and choose Advanced network settings
- Locate the Windows Firewall option.
- Select Private and Public networks on the Windows Firewall page and close.
- Then toggle on the Microsoft Defender Firewall.
For the problem you mentioned about the interface not exiting, you can try the following:
- Press Windows + D to return to the desktop.
- Move your mouse to the top of the interface and wait for a while to see if the zoom icon is displayed in the top right position.
- Press Ctrl + Alt + Delete to display the task manager and then end the corresponding process.
If there is anything not clear, or I can't understand your problem, please do not hesitate to let me know.
Best Regards
Martin | Microsoft Community Support Specialist