How to Fix 504 Gateway Timeout Error

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Learn how to fix the 504 Gateway Timeout error with various possible solutions! Start your WordPress website today with Hostinger web hosting 👉
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The 504 Gateway Timeout error occurs when a browser’s request to a server cannot be completed in time. In some cases, you’ll need to perform multiple fixes to solve the issue. Watch this video to learn the possible causes of the 504 error and how to fix it within 10 minutes.

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🕒 Timestamps
00:00 – Intro
00:10 – What Is 504 Gateway Timeout Error?
01:42 – Refresh the Page
02:26 – Flush the DNS Cache
04:10 – Try a Different Browser
04:41 – Check Order Usage
06:05 – Check Plugins
07:03 – Check the Error Log
08:21 – Check CDN
08:54 – Contact Customer Support

The 504 Gateway Timeout error is one of the most common server-side errors. This issue can happen due to various factors, such as:

👉 Firewall misconfiguration
👉 Connectivity issues
👉 Web server overload
👉 Unresolvable domain

There are multiple possible solutions to fix the 504 Gateway Timeout error:

📌 Refresh the Page
In most cases, refreshing the web page will solve the 504 Gateway Timeout error.

📌 Flush the DNS Cache
Stored DNS cache files can cause errors if they get outdated or corrupted. The ipconfig /flushdns command can be used to flush the DNS cache for all Windows versions, but macOS commands vary:

👉 macOS 13 Venture:
sudo killall -HUP mDNSResponder; sleep 2; echo macOS DNS Cache Reset | say

👉 macOS 11 Big Sur or 12 Monterey:
sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder

👉 macOS 10.11 El Capitan, 10.12 Sierra, 10.13 High Sierra, 10.14 Mojave, or 10.15 Catalina:
sudo killall -HUP mDNSResponder

👉 macOS 10.10 Yosemite:
sudo discoveryutil udnsflushcaches

👉 macOS 10.7 Lion, 10.8 Mountain Lion, or 10.9 Mavericks:
sudo killall -HUP mDNSResponder

📌 Try a Different Browser
Sometimes, the error is related to your web browser, so try loading the website using a different browser.

📌 Check Order Usage
If your site has reached its plan’s resource limits, try extending the maximum execution time limit. A longer-term solution is upgrading to a hosting plan with more resources.

📌 Check Plugins
Outdated and incompatible WordPress plugins might trigger the 504 Gateway Timeout error. So, temporarily disable them to pinpoint the source of the error.

📌 Check the Error Log
Corrupted code due to website updates or edits is another possible factor causing the error. You can check the PHP error log via your hosting control panel.

📌 Check CDN
CDN services might cause the error due to scheduled maintenance. Try checking the Cloudflare system status to identify any network issues.

📌 Contact Customer Support
If the error message still appears after you perform all possible solutions, reach out to your host’s customer support team for help.

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Thank you for watching! Let us know in the comments below if you have any questions. Good luck on your online journey. 🚀

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