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paullouisageneau / libdatachannel

C/C++ WebRTC network library featuring Data Channels, Media Transport, and WebSockets
https://libdatachannel.org/
Mozilla Public License 2.0
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Trouble connecting via TURN server #1236

Open singpolyma opened 1 month ago

singpolyma commented 1 month ago

When I test locally, I have no trouble connecting to local devices, but when I test a session between the same two devices and one is outside such that TURN is needed, it never connects. One device is using my app on libdatachannel, the other is an app using libwebrtc on android. I am also in control of one of the two TURN servers.

I have attached the libdatachannel logs here. I'm not 100% sure how to interpret them, but it almost seems like it is able to contact the TURN server to allocate a port for the channel, but then is never able to contact anything over that channel? log.txt

paullouisageneau commented 1 month ago

I have attached the libdatachannel logs here. I'm not 100% sure how to interpret them, but it almost seems like it is able to contact the TURN server to allocate a port for the channel, but then is never able to contact anything over that channel?

The first TURN server is unreachable, it never answers. The second TURN server is successful and the client gets a relay candidate, but no packet is ever received on the allocated port. Firewall might be misconfigured on the server.