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5 months agoThank you! I did some reading and that’s also how I understand it: at least one peer has to have port forwarding enabled / listen on a port for two peers to connect. Also I found out about “Hole punching” or “NAT punching” where a middleman server is used to open up ports on two peers that do not have ports forwarded yet to allow them to talk to each other directly. This is also used in BitTorrent. And also explains why it works without explicit port forwarding enabled.
Well at least the second hand laptop market will be flooded by the companies deciding to upgrade to newer laptops for Win11, so a small upside.