Title: ERR_HTTP2_PROTOCOL_ERROR Last modified: January 25, 2024 --- # ERR_HTTP2_PROTOCOL_ERROR * Resolved [Shankha](https://wordpress.org/support/users/shankamley/) * (@shankamley) * [2 years, 4 months ago](https://wordpress.org/support/topic/err_http2_protocol_error-20/) * How to disable it? everytime i want to disable cache or change settings, it is returning with ‘ERR_HTTP2_PROTOCOL_ERROR’ * See screenshot: [https://paste.pics/1c70bcd7c559038982a777a883813568](https://paste.pics/1c70bcd7c559038982a777a883813568) Viewing 2 replies - 1 through 2 (of 2 total) * Plugin Author [Seraphinite Solutions](https://wordpress.org/support/users/seraphinitesoft/) * (@seraphinitesoft) * [2 years, 4 months ago](https://wordpress.org/support/topic/err_http2_protocol_error-20/#post-17372132) * What is PHP version? We suppose it is =< 8.2.*. If so, pls, try downgrade to 8.1.*. * Plugin Author [Seraphinite Solutions](https://wordpress.org/support/users/seraphinitesoft/) * (@seraphinitesoft) * [2 years, 3 months ago](https://wordpress.org/support/topic/err_http2_protocol_error-20/#post-17406395) * Closed due to inactivity more that month. Viewing 2 replies - 1 through 2 (of 2 total) The topic ‘ERR_HTTP2_PROTOCOL_ERROR’ is closed to new replies. * ![](https://ps.w.org/seraphinite-accelerator/assets/icon-256x256.jpg?rev=2610331) * [Seraphinite Accelerator](https://wordpress.org/plugins/seraphinite-accelerator/) * [Support Threads](https://wordpress.org/support/plugin/seraphinite-accelerator/) * [Active Topics](https://wordpress.org/support/plugin/seraphinite-accelerator/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/seraphinite-accelerator/unresolved/) * [Reviews](https://wordpress.org/support/plugin/seraphinite-accelerator/reviews/) * 2 replies * 2 participants * Last reply from: [Seraphinite Solutions](https://wordpress.org/support/users/seraphinitesoft/) * Last activity: [2 years, 3 months ago](https://wordpress.org/support/topic/err_http2_protocol_error-20/#post-17406395) * Status: resolved