---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/53407#article
headline: "53407: Media connection failed due to DTLS handshake failure"
url: https://www.twilio.com/docs/api/errors/53407
inLanguage: en
dateModified: 2026-03-11T20:43:38.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 53407: Media connection failed due to DTLS handshake failure

Log Type: TWILIO

Log Level: ERROR

## Description

There was a problem while negotiating with the remote DTLS peer. Therefore the Participant will not be able to publish or subscribe to Tracks.

### Possible causes

* One or both of the DTLS peers have an invalid certificate.
* One or both of the DTLS peers have an outdated version of DTLS.
* One or both of the DTLS peers lost internet connectivity while performing a DTLS handshake.

### Possible solutions

* Ensure that your certificate is valid.
* Ensure that you have a stable internet connection.
* Ensure that the browser or the Mobile SDK supports newer versions of DTLS.