# Local setup: WebRTC + firefox - ICE failed, add a STUN server and see about:webrtc for more details

**URL:** <https://community.wowza.com/t/local-setup-webrtc-firefox-ice-failed-add-a-stun-server-and-see-about-webrtc-for-more-details/49847>\
**Category:** Wowza Streaming Engine\
**Created:** [October 4, 2017, 11:55pm UTC](https://community.wowza.com/t/local-setup-webrtc-firefox-ice-failed-add-a-stun-server-and-see-about-webrtc-for-more-details/49847 "2017-10-04T23:55:47Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![Emma-Louise\_Leavey](https://avatars.discourse-cdn.com/v4/letter/e/41988e/32.png) [@Emma-Louise\_Leavey](https://community.wowza.com/u/Emma-Louise_Leavey)\
**Post date:** [December 15, 2020, 7:15am UTC](https://community.wowza.com/t/local-setup-webrtc-firefox-ice-failed-add-a-stun-server-and-see-about-webrtc-for-more-details/49847/7 "2020-12-15T07:15:34Z")

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I was able to find something that worked, per [WebRTC demo page and Firefox](http://community.wowza.com/t/webrtc-demo-page-and-firefox/92337/8)

It only worked for me if UDP is the _only_ ICE candidate. I had to remove TCP completely. Even if UDP is the priority, it didn’t work.

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_[View the full topic](https://community.wowza.com/t/local-setup-webrtc-firefox-ice-failed-add-a-stun-server-and-see-about-webrtc-for-more-details/49847)._