# ERROR:Worker worker process died unexpectedly

**URL:** <https://mediasoup.discourse.group/t/error-worker-worker-process-died-unexpectedly/268>\
**Category:** mediasoup libraries\
**Created:** [September 16, 2019, 5:12am UTC](https://mediasoup.discourse.group/t/error-worker-worker-process-died-unexpectedly/268 "2019-09-16T05:12:19Z")\
**Posts on this page:** 1\
**Showing post:** 24

<div class="post-metadata">

**Author:** ![mkh](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/mkh/32/145_2.png) [@mkh](https://mediasoup.discourse.group/u/mkh)\
**Post date:** [September 28, 2019, 3:01pm UTC](https://mediasoup.discourse.group/t/error-worker-worker-process-died-unexpectedly/268/24 "2019-09-28T15:01:08Z")

</div>

Nope, both TCP and UDP are allowed and `preferUdp` is set to `true`, the same goes for my local config.

But as I mentioned [Safari on iOS does not work with UDP](https://mediasoup.discourse.group/t/safari-on-ios-does-not-work-with-udp/256).

---

_[View the full topic](https://mediasoup.discourse.group/t/error-worker-worker-process-died-unexpectedly/268)._