If you have recently made any change or update, it could be the reason for the 502 bad gateway error. If you can, try to connect to a different network too to make sure that the issue is about your machine or not. It is an easy solution to test the connection on another computer or a mobile device.
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The DNS changes take full effect, which can take a few hours and your website will not be up and running till the end of the changes. So, you can flush DNS to troubleshoot this case. If you have recently changed host servers or moved your website to a different IP address, you need to consider this option. Check your DNS serverĪs you read above, one of the reasons for the 502 bad gateway error could be DNS issues. If you started a new browser session and loaded the site on a different browser and the error did not disappear, go for the next options. To make sure that the 502 error is not due to a browser-related problem, try a different browser. It does not make changes? Do not worry and dive into the following solutions. Even you can clear your browser cache and then refresh it again.
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Also, if you are a Mac user, press Command+R. You know the shortcuts, if not, press F5 or CTRL+F5 while you are working with windows. Sometimes the best way is the simplest! So, why you do not try it? If the error is temporary, this will be the solution. If it is your lucky day, it should be solved just by clicking the refresh button after waiting around one or two minutes. Let’s see the steps to fix the 502 Bad Gateway Error on Nginx. This error occurs because of server-side problems, misconfiguration, or issues from the client-side. In this section, review the ways you need to check to be able to solve the 502 Bad Gateway Error on Nginx.
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How to Fix 502 Bad Gateway Error on Nginx So, locate this file in Apache by going to /var/log/apache2/error.log and in Nginx by going to /var/log/nginx/error.log. Since all error and diagnostic information is stored in this file, you can use it as a valuable resource. If you are eager to see more details of any one of the above errors, go to your web server’s error log file. Note: Cloudflare users need to disable it since once they reach a certain limit, Cloudflare will return a 502 Bad Gateway error to your visitors. If all is ok, check your firewall log especially if you see unusual drops. Also, your server should be reachable by using a ping test or traceroute. But As a developer or owner of the website, first of all, check your FQDN is resolving correctly by using your DNS test tool or not. Most often, a 502 bad gateway error has nothing to do with you as a visitor to the site.
Here are some of the reasons for 502 Bad Gateway responses: To solve this error, it is a good idea to know the main culprits. Recommended Article: Initial server set up on Ubuntu 20.04 LTS What are the main reasons for 502 Bad Gateway ErrorĪt the first sight, when you experience a 502 Bad Gateway Error, you do not know what exactly happened or why. So, you can not actually know your website’s exact issue and it just serves as an error web page to your visitors as shown below. Users of WordPress, Gmail, Twitter, and Cloudflare may view this error regularly. Also, you may see 500, 503, 0r 504 error messages. It indicates the server was not able to get a valid or any response from the origin server. As you read above, a 502 Bad Gateway is a problem with the network/server.
Generally, the error messages that begin with ”5” mean the server can not perform the request.