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I create web app with Ruby on Rails using WebRTC for video connections (with SimpleWebRTC: https://simplewebrtc.com/). It works on remote server, and use signalmaster (https://github.com/andyet/signalmaster). Everything works good on most networks, but sometimes there is no remote video. I have callback from videoAdded, but there is completely no video from other peers. I think it might be something with that network configuration, but have no idea what. Does anyone have idea what's wrong?

Tomasz Czura
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    Do you use a TURN server? On some networks (symmetric NAT, Firewall...) it is mandatory to use one in order to initiate WebRTC calls. – Antonin M. Jun 22 '16 at 07:20
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    That's it, just set up a TURN serveur. Follow the mido's answer at this link: http://stackoverflow.com/questions/22233980/implementing-our-own-stun-turn-server-for-webrtc-application/35452566#35452566 – Ernest Jun 23 '16 at 07:25
  • Check out my answer to a similar question https://stackoverflow.com/a/44432973/813988 – octavn Jun 08 '17 at 10:20

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