Routed Echo example behind two NATS

Hello libp2p community,

I am running the routed echo example written in go ( on two PCs (my computer and the one of my friend). We are both behind a NAT. I checked the NATs type with the DiscoverNAT function and we both have a UPNP typed NAT.

Should the example connect us and send the hello world? We both receive a “No routing” error. What is missing?

Thanks a lot for your support in advance,