Fix Expired Let’s Encrypt 9/30

A quick, plain English fix and explanation of the Let’s Encrypt expiring root certificate issue for clients + users

The root CA cert DST Root CA X3 has expired.

Introduction

Here’s the deal, Let’s Encrypt uses a root CA certificate that is “cross-signed”. This basically means it’s like having 2 root CAs in 1, but your device only needs to trust…