ANSWERED DDNS not working for German Minecraft player

[pleasejustwork 0]

I use airvpn for "port forwarding" on a home-hosted minecraft server, which is accessible via a DDNS address. This is working great, except for one of our players, who can log in without issue if given the actual IP address in use at the time but doesn't even ping with the DDNS address. As far as I can tell, the only thing that makes this player different from everyone else is that they're in Germany. Any idea what's happening here?

[OpenSourcerer 1360]

What's the DNS lookup result for that player?

[Staff 9764]

@pleasejustwork

Hello!

Please note that your *.airdns.org name is updated correctly, but it is updated only for one of your devices (the "Minecraft" one), as it's linked to that device only. Also note that TTL is 30 minutes, so on public DNS you may expect an update after 15 minutes on average (while update on the VPN DNS is immediate).

Kind regards