

If there is a faulty configuration of your firewall, it views requests from CDN (Content Delivery Network) as an attack on the server. Your firewall protects your site from malicious user attacks and DDoS(Distributed Denial-of-service) attacks.
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You can disable the automatic update for the settings as well. If you have access to your server settings, check for any scheduled maintenance. Receiving the 504 error in such a case is standard. Your server might be undergoing maintenance. Check for Your Server’s Scheduled Maintenance.
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You can check out the article on How to clear browser cache for the details. Clear your browser cache and reload the website. In such cases, you may encounter the 504 error. However, old caches and cookies may sometimes interfere with the loading of that particular website. The idea here is to decrease the website’s loading time. Your browser keeps a record of the websites you visit in its cache and cookies. Restart your router and modem, then revisit the website. But it is also possible that there is an issue with your router’s DNS server configuration and is causing that error. The 504 gateway error is due to some issue with your server connection. Also, refresh the webpage a couple of times. The 504 error also might be because you mistyped the URL of the site you are trying to visit.

So, check your internet connection and assure that it is running well. Due to this, your browser might be showing the error. Chances are, your internet connection may be down. The main reason for the 504 error is a delay or lack of connection between your server and the hosting server. Here are some tricks that may resolve the 504 error: 1. Your device, browser, and internet connection may be running well, and you may still face the 504 error. But whatever the reason, the server is down and is not working at the moment.īeing a network error, finding the actual cause for the 504 error is quite tricky. The connection error may be due to several reasons. Like already said above, the 504 error is due to a connection failure between your server and the upstream server. Though the wording in the above responses is different, they all indicate the 504 error.

