hamid_rostami

Well spotted, that fixes the issue, thanks!

Well, it's situated in Iran and as you might know they're applying highly restricted rules on traffic. I doubt there is a firewall issue. I have UDP connections from a peer within Iran, but absolutely nothing from outside.

Bases on my investigations, it's been dropping all UDP datagrams.

Yes, indeed udp2raw is very interesting. It's a while I'm playing with it and I found it stable enough. Actually, I avoid putting so much stress on my wireguard connection over udp2raw, just being able to establish SSH connection to my devices is enough for me and this method is doing great so far.

How can I edit the title?

This is a simple hack to findout IP of your home server, if your IP isn't static and changes over time.