Hi there! It sounds like your video chat on CorrLinks is cutting off, with a message suggesting you check your firewall. Let's work through that together.

First, just to make sure I understand: you're using a Windows device version 10.0 with a WebKit browser, correct? And the video call cuts off with a "check firewall" message. Have you noticed if this happens only on your home network or on other networks too?

Assuming it's your Windows 10 firewall, here’s how we can check and adjust it:

1. Open Windows Defender Firewall:
- Click the Start button (Windows icon) bottom-left.
- Type "Windows Defender Firewall" and press Enter.
- This opens your firewall settings.

2. Allow CorrLinks or Video Chat through Firewall:
- On the left, click "Allow an app or feature through Windows Defender Firewall."
- Click the "Change settings" button at the top (you may need admin rights).
- Look for CorrLinks or the specific video chat app/service in the list.
- Make sure both Private and Public boxes are checked.
- If it's not listed, click "Allow another app...", browse to the CorrLinks app or browser executable, and add it.

3. Check Firewall Rules for Web Browser:
- Sometimes the browser itself needs permission. Make sure your WebKit browser (like Safari or any Chromium-based browser packaged with WebKit) is allowed through the firewall similarly.

4. Temporarily Disable Firewall to Test:
- If the problem persists, you can temporarily disable the firewall to see if it's blocking the connection.
- In the main Windows Defender Firewall window, click "Turn Windows Defender Firewall on or off" on the left.
- Select Turn off Windows Defender Firewall for both private and public networks, then try the video chat.
- Remember to turn it back on after this test.

5. Check Third-Party Antivirus or Firewall:
- If you have any other security software, it may also have firewall capabilities blocking video chat. You might need to check those settings or temporarily disable those as well.

6. Network Consideration:
- Some network firewalls, like on work networks or public Wi-Fi, may block video streaming ports. Using a home or unrestricted network is best for troubleshooting.

If you’d like, I can guide you through these steps in more detail or help you identify if other blocking factors exist.

Does this make sense so far? Have you tried any firewall changes already? That way, I won’t repeat steps unnecessarily.