Encountering the 'ERR_CONNECTION_REFUSED' error on your mobile browser indicates that the browser is unable to establish a connection with the website's server.
Check Internet Connection: Connect to a reliable Wi-Fi network or enable mobile data.
Reload the Page: Sometimes, the error may be temporary. Try reloading the page by pulling down on the screen or tapping the reload icon.
Clear Browser Cache: Cached data may be causing conflicts. Navigate to your mobile browser's settings, find the option to clear browsing data, and select "Clear Cache." This action can resolve issues related to outdated or corrupted cached content.
Use a Different Browser: Try accessing the website using a different mobile browser. If the error persists on one browser but not on another, it suggests a browser-specific issue.
Disable VPN or Proxy: These services can sometimes interfere with the connection and lead to the 'ERR_CONNECTION_REFUSED' error.
Check the Website's URL: Ensure that you have entered the correct website URL. Typos or incorrect URLs can lead to connection issues.
Restart Your Device: A simple restart of your mobile device can clear temporary glitches and potentially resolve the connection problem.
Check Firewall or Security Software: Temporarily disable the firewall or security software and attempt to access the site.
Contact Website Administrator: If the error persists, the issue may be on the website's server side. Contact the website administrator or support team to inquire about server status and potential issues.
Update Browser: An outdated browser may have compatibility issues that can result in connection errors.

By systematically going through these steps, you can troubleshoot and potentially resolve the 'ERR_CONNECTION_REFUSED' error on your mobile browser.
Read also: How to resolve 'ERR_NETWORK_CHANGED' on my computer