[WebRTC] OnIceConnectionChange : state is failed

Unity Engine
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1

Dear,

I made a relay server for sdp, candidate and it had a public IP on AWS.
(stun server use “stun:stun.l.google.com:19302”)

[Scenario 1] => result : Ok, works well.
A User : A network
B User : B network
(A and B network have different public ip)

[Scenario 2] => result : the ice connection is failed.
A User : A network
B User : B network (the NAT envrionment is set up DMZ or TwinIP)
(A and B network have different public ip)

Additionally, the janus is working well on the scenario 2.
(https://janus.conf.meetecho.com/videoroomtest.html)
→ also it uses to “stun:stun.l.google.com:19302”

If anyone knows a solution to this, please reply.

2

Hi, what version of the WebRTC package are you using?
We have updated the native library recently, there might be impact about your issue.

1 Like
3

Thanks for your reply.

The used WebRTC version is 3.0.0-pre.4.

I look forward to your answer.

8752309--1185925--webrtc_package.png

4

I assume that the reason is some codecs doesn’t support simulcast. Honestly, we haven’t tested simulcast features.
What video codec are you using?

5

Dear,
There is no special setting for the video codec.
Do I need to do anything to set up the video codec?

6

The documentation of video components is here.
https://docs.unity3d.com/Packages/com.unity.renderstreaming@3.1/manual/video-streaming.html

7

Dear,

Video Codec is Default.

Thanks for your reply.

8

This problem is solved.
Firewall port setting of a turn server were the cause of the problem.

Thanks for replies.

1 Like