Make sure that all settings under the Privacy tab and Xbox One/Windows 10 Online Safety are set to "Allow" or "Everyone". It should be like the screenshot below. Also, make sure to set these settings to "Allow" or "Everyone".

Check for Antivirus or Firewall Interference. The lost connection Terraria error can occur when your Windows Firewall or antivirus program is blocking you from accessing the server. Under this situation, you can allow the game through your Firewall or antivirus software.

Google Sites is Google's website builder. When you pit Google Sites vs. WordPress or another advanced website builder, it won't really stack up it has way fewer features. But it still has what you need to create a blog, portfolio, business site, or company intranet.

Clear Your Browser Cache\n\n In some cases, you might run into the This site can't be reached  error due to problems with your cached files. To solve that issue, you'll need to clear your browser cache. Clearing cached {img} and files in Chrome. Click on Clear Data,and that's it.