# What is the LetsEncrypt challenge method?

**URL:** https://discourse.roots.io/t/what-is-the-letsencrypt-challenge-method/10293
**Category:** trellis
**Tags:** letsencrypt
**Created:** 2017-08-25T02:13:30Z
**Posts:** 8
**Showing post:** 8 of 8

## Post 8 by @ian — 2017-08-28T03:33:43Z

Thanks for your suggestions everyone. Turned out there is some ultra paranoid firewall restricting the http request that the LetsEncrypt domain validation / authorisation uses. We just purchased an expensive SSL and did a manual install instead.

---

_[View the full topic](https://discourse.roots.io/t/what-is-the-letsencrypt-challenge-method/10293)._