# On-premise installation does not work for web and mobile participants

**URL:** <https://openvidu.discourse.group/t/on-premise-installation-does-not-work-for-web-and-mobile-participants/3022>\
**Category:** Issues with deployment\
**Tags:** v2\
**Created:** [May 5, 2021, 7:36am UTC](https://openvidu.discourse.group/t/on-premise-installation-does-not-work-for-web-and-mobile-participants/3022 "2021-05-05T07:36:22Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![cruizba](https://yyz2.discourse-cdn.com/free1/user_avatar/openvidu.discourse.group/cruizba/32/18_2.png) [@cruizba](https://openvidu.discourse.group/u/cruizba)\
**Post date:** [May 5, 2021, 4:38pm UTC](https://openvidu.discourse.group/t/on-premise-installation-does-not-work-for-web-and-mobile-participants/3022/3 "2021-05-05T16:38:16Z")

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I suppose that if you have your ports open correctly, you may be able to pass a Trickle ICE test to see if at least coturn is reachable: [TURN error after initial tests (On-premises CE 2.16.0 install) - #6 by cruizba](https://openvidu.discourse.group/t/turn-error-after-initial-tests-on-premises-ce-2-16-0-install/2599/6)

If you don’t see srflx and relay candidates, your ports are not correctly setup

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