FullHost - 421 Misdirected Request Errors on Some Websites – Incident details

This incident has been resolved.

This morning, some customers experienced **"421 Misdirected Request"** errors when accessing their websites. The issue was related to a change in how **EA-Nginx and other reverse proxy setups** handle HTTP/2 connections, which affected sites using services such as **Cloudflare** and similar proxy configurations. More details are available in the official cPanel article: We have applied the recommended fix to the majority of affected servers. Most impacted websites should now be functioning normally. If your site is still experiencing issues, please reach out to our support team for assistance. We apologize for the disruption and appreciate your understanding.