Support

Admin Tools

#43207 Getting 504 Gateway Timeout on admin login after using Cloudflare

Posted in ‘Admin Tools for Joomla!’
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Environment Information

Joomla! version
5.4.7
PHP version
8.3.31
Admin Tools version
7.8.9

Latest post by rmesceo on Thursday, 30 July 2026 00:16 CDT

Tuesday, 28 July 2026 21:27 CDT

rmesceo
Dear Akeeba Support Team,

We are writing to seek technical assistance regarding an issue with logging into our website's administrator backend.

Since implementing Cloudflare (Free Plan), accessing the backend results in a "504 Gateway Timeout" error. We have confirmed that disabling Admin Tools resolves the issue and allows us to log in normally.

Could you please advise on the recommended configuration or settings in Admin Tools and Cloudflare to resolve this conflict?

Thank you for your assistance.

Wednesday, 29 July 2026 01:52 CDT

nicholas

Your site is now behind a CDN. Your server only sees the IP address of the CDN, not the IP address of your site's visitors. This means that a number of blocked requests, even from unrelated visitors, now block the entire server.

Fixing this is simple.

Go to your site's Global Configuration page and enable Behind Load Balancer. Save the configuration.

This tells Joomla to trust the IP address carried in the HTTP X-Forwarded-For header which, in your case, is set by CloudFlare. Therefore, Joomla now sees the IP address of your site's visitor. The code behind this core Joomla feature was contributed by us; it was originally created for Admin Tools, exactly for this use case you have here.

Nicholas K. Dionysopoulos

Lead Developer and Director

🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
Please keep in mind my timezone and cultural differences when reading my replies. Thank you!

Thursday, 30 July 2026 00:16 CDT

rmesceo
Understood. The issue has been successfully resolved.
Thank you for your assistance.

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