Clear DNS Cache
Sometimes, when you encounter a 502 Bad Gateway error, it’s because of DNS issues. These problems arise because the DNS (Domain Name System) can’t translate domain names into IP addresses properly. This translation is what allows computers to connect to websites. One way to fix this is by clearing your DNS cache. Here’s how you can do it:
Windows
Step 1: Press Win + R to open the Command Prompt, type cmd, and hit Enter.
Step 2: Type ipconfig /flushdns in the Command Prompt and then press Enter.
A message indicating that the DNS Resolver Cache was flushed will appear.
Mac
Step 1: Open Terminal which is located in the Applications > Utilities folder.
Step 2: Type sudo killall -HUP mDNSResponder on the Terminal window and press the Enter key.
Step 3: You may be required to enter your administrator password. Just key it in and click on the Enter button.
Step 4: A prompt showing that the DNS cache has been cleared will show up.
Linux
Step 1: Open a terminal window
Step 2: On some Linux distributions, use either of these commands depending on what you have:
Systems based on systemd (e.g., Ubuntu 16.04 and later): sudo systemctl restart systemd-resolved.service
For nscd (Name Service Caching Daemon) based systems: sudo systemctl restart nscd
dnsmasq- based systems: sudo systemctl restart dnsmasq
A notice saying that the DNS cache has been cleared should appear.
Once you have cleared your DNS cache, you can now try accessing the website to find out if it is still affected by the 502 error. If not, then put off your computer or modem and later restart them because anything related to a network may also bring about DNS problems.
How To Fix 502 Bad Gateway Error
A 502 Bad Gateway Error means that one server on the internet received an invalid response from another server. It’s a common problem that can occur for a variety of reasons, such as server overload or network errors.
Understanding and fixing this error is crucial for ensuring smooth access to websites, both for website owners and users. In this article, we’ll explore the causes of a 502 Bad Gateway Error and provide you with straightforward, effective solutions to get everything back to normal.
Fix 502 Bad Gateway Error
- What is a 502 Bad Gateway Error?
- 502 Bad Gateway Error Variations
- What causes the 502 Bad Gateway Error ?
- How To Fix a 502 Bad Gateway Error
- 1. Refresh the Page
- 2. Check Other Websites
- 3. Clear Browser Cache
- 4. Restart Your Computer
- 5. Clear DNS Cache
- 6. Check Server Status
- 7. Check Plugins and Themes
- 8. Check Error Log
- 9. Contact Website Administrator
- Additional Steps for Advanced Users