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My Friend On Windows Can't See Img Or Audio In The Whiteboard

Any idea why?


Is there a NAT involved? If yes, see the ports page of the networks panel in the preferences to see which ports you should forward.

There's no NAT at my end nor at my friend's end.

Should we have one? And what do you mean by forwarding ports?

All but images and audio is send in-band, so via the server. Images and audio are sent peer to peer. For some reason the peer to peer does not work. So either there is at least one firewall or one NAT in between of you both.

It's Windows at the other end.

So I suspect a firewall is the most likely cause.