Following upgrade from Ubuntu 22.04 to 24.04, I receive "connection refused" message to any machine in my local network. This happens only using DDNS names, while IPs work. This happen only on the Ubuntu 24.04 laptop.I could not find any solution online.Port forwarding on my router is fineThere is no firewall on the laptop
nslookup xxx.dynu.net 8.8.8.8
doesn't give errors