So, your support team is suddenly flooded with tickets about “421 Misdirected Request” errors, and you’re wondering if the internet is just having a bad day. Spoiler: it’s not. But Apache might be. Let’s break down what’s going on, why it’s happening now, and how to fix it—whether you’re using Plesk, cPanel, or flying solo with your own Apache setup. What Is a 421 SNI Error Anyway? The HTTP 421 “Misdirected Request” error is Apache’s way of saying: “Hey, I wasn’t e...
