# VitXi WebRTC stopped working

**URL:** https://forums.vitalpbx.org/t/vitxi-webrtc-stopped-working/91
**Category:** FAQ
**Created:** [July 17, 2021, 4:28pm UTC](https://forums.vitalpbx.org/t/vitxi-webrtc-stopped-working/91 "2021-07-17T16:28:49Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![admin](https://forums.vitalpbx.org/user_avatar/forums.vitalpbx.org/admin/32/3_2.png) [@admin](https://forums.vitalpbx.org/u/admin)
#### Post date: [July 17, 2021, 4:28pm UTC](https://forums.vitalpbx.org/t/vitxi-webrtc-stopped-working/91/1 "2021-07-17T16:28:49Z")

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If it was working correctly and from one day to the next it stopped registering the users’ extensions, it is likely that the Let’s Encrypt certificate is expired and cannot be renewed.

We recommend you go to topic of:

Let’s Encrypt Certificate does not work