Wordpress LScache Plugin: QUIC.cloud ERROR 520 Problem
Last Updated on: Wed, 15 Apr 2026 00:00:02 I have the LiteSpeed Cache plugin installed on a site I am building at http://www.fabulous-food.com.au. All the main plugin functions, including the QUIC.cloud CDN, are enabled. The site is running on PHP 8.2, and the WordPress, theme and plugin versions are the latest available. Site speed testing results are impressive, but I keep getting intermittent ERROR 520 messages when I am working on the back end of the site. The QUIC.cloud website troubleshooting section suggests that a firewall at the origin server may be blocking the connection, and that the hosting provider be requested to add the QUIC.cloud IPs to the firewall allowlist. My hosting provider assures me that this is not the case. I have searched the forum and It seems that I am not the first person to experience this problem. However, I cant seem to find any definitive reason or solution. I would be grateful for any assistance or comments. The page I need help with: http://www.fabulous-food.com.au Did you already read this? https://quic.cloud/docs/troubleshooting/http-error-response-codes/ If this doesnt help you can check your host for any network issues. This can easily be done with WinMTR, where you can check the traffic route. https://sourceforge.net/projects/winmtr/ Thanks for your quick response and suggestions. However, after consulting my hosting provider, I am pretty sure the problem is not caused by them. I cant be bothered spending any more time on the issue, so I have disabled the QUIC.cloud CDN. I am still getting very impressive scores on Pingdom, GMetrix and ByteCheck, so the LiteSpeed Cache plugin seems to be doing its job, even without the CDN.
LiteCache Rush: Speed comes from using less, not from doing it faster
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