There are multiple ways to fix ERR_CONNECTION_TIMED_OUT some are mentioned down below.
11. Clear Cookie & Cache2. Update the drivers3. Change LAN Settings4. Flush DNS
Delete Browser Cookies & Cache
Solution 1
1. Press Ctrl + H.2. The History page will open3. On the left side Click on Clear browsing data.4. Select the All-Time option from the time range
1. Click on the Search bar2. Type "control panel"3. Click on the "Control Panel" Icon4. Adjust the "View By" as "Large Icon"5. Find the "Internet Options"
6. Click on it7. A window will open name "Internet Properties"8. Navigate to the "Connection Tab"9.. Click on the "LAN settings"10. A new Window Will open its name as "Local Area Network" Settings.