WevRTC/wireshark networking troubleshooting expert

[login to view URL] is a webrtc demo implementation and this has been working for us for the last few months and we have also created our own version of this implementation. From yesterday our own site failed working and also apprtc failed working. I have been very aware of the Google Chrome versions that we have been using and have not been able to detect any difference in the version from when it was working and now when it is not working. It is both tablet (Chrome/Android) and pc connections that are failing. This is peer-peer in my country between several people but also among people in other countries that I am working with. All the signaling looks ok. No changes has been made to our computers as far as any of us are aware of, no relevant changes has been made to our own code and according to apprtc repository [login to view URL] no code changes has been made there. I need a networking specialist helping me investigating what seems too be the problem at a lower network level. Self connection: browser to browser inside my LAN works (both pc-pc and pc-tablet and tablet-tablet/phone) Loopback test: [login to view URL] works fine So this seems to be a network related error. My guess is that you need pretty hardcore wireshark experience and preferavbl STUN/TURN webrtc knowledge as well