# Cannot get remote video/audio when using mobile data flutter(on-premise,dmz deployment)

**URL:** <https://openvidu.discourse.group/t/cannot-get-remote-video-audio-when-using-mobile-data-flutter-on-premise-dmz-deployment/4788>\
**Category:** Issues developing apps\
**Tags:** v2\
**Created:** [September 6, 2023, 8:51am UTC](https://openvidu.discourse.group/t/cannot-get-remote-video-audio-when-using-mobile-data-flutter-on-premise-dmz-deployment/4788 "2023-09-06T08:51:17Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![farid](https://yyz2.discourse-cdn.com/free1/user_avatar/openvidu.discourse.group/farid/32/2233_2.png) [@farid](https://openvidu.discourse.group/u/farid)\
**Post date:** [September 6, 2023, 8:51am UTC](https://openvidu.discourse.group/t/cannot-get-remote-video-audio-when-using-mobile-data-flutter-on-premise-dmz-deployment/4788/1 "2023-09-06T08:51:17Z")

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Cannot get remote video/audio when using mobile data flutter(on-premise,dmz deployment). But everything is all good when using internal wifi.

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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:** [September 8, 2023, 1:24pm UTC](https://openvidu.discourse.group/t/cannot-get-remote-video-audio-when-using-mobile-data-flutter-on-premise-dmz-deployment/4788/2 "2023-09-08T13:24:02Z")

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How are you deploying? Did you use official instructions? Did you check all necessary ports are open?

This looks like a STUN/TURN not reachable problem

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**Author:** ![farid](https://yyz2.discourse-cdn.com/free1/user_avatar/openvidu.discourse.group/farid/32/2233_2.png) [@farid](https://openvidu.discourse.group/u/farid)\
**Post date:** [February 8, 2024, 1:30am UTC](https://openvidu.discourse.group/t/cannot-get-remote-video-audio-when-using-mobile-data-flutter-on-premise-dmz-deployment/4788/3 "2024-02-08T01:30:04Z")

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Ya, solved this coz of wrong config on ice server