Hi! I understand your HITV app is showing a network error 404 even though you have a fast internet connection. Let's get to the bottom of this together.

First, just to confirm, the 404 error typically means the app is trying to reach a resource (like a server or video stream) that it can't find—it's not usually a direct issue with your internet speed but more with the app's connection or server access.

Let's try these steps to resolve it on your Android 10 device using WebKit browser:

1. Restart the App and Device
Completely close the HITV app and clear it from recent apps. Then restart your Android device. Sometimes this resets temporary glitches.

2. Clear App Cache and Data
- Go to Settings > Apps > HITV
- Tap Storage
- Select Clear Cache and then Clear Data (Note: Clearing data might require you to log in again)

3. Check for App Updates
Verify that your HITV app is updated to the latest version via the Play Store. If an update is available, install it. Sometimes older versions have broken links causing 404 errors.

4. Check Network Settings
Even if your network is fast, confirm the connection is stable:
- Try browsing other apps or websites.
- Disable any VPN or proxy, if in use; these can sometimes block or reroute connections incorrectly.
- Switch between Wi-Fi and mobile data to test.

5. Reinstall the App
Uninstall HITV completely, then reinstall it fresh. This can fix corrupted app files.

6. Check Server Status
Occasionally, the HITV servers or content links might be down or moved, causing the 404 error. To verify this:
- Check recent user reports on Reddit or HITV forums to see if others have the issue.
- If the error persists and others are reporting it, it could be a server-side problem that only the HITV team can fix.

Would you please tell me if you have tried any of these already? Also, does the error happen right at app startup or when trying to play specific content? That info will help me guide you more precisely.