OS Name/Version: Ubuntu 24.04.4
Product Name/Version: 2.6.5.2 - 20260128.2 (Phobos)
Problem Description: DNS/ Static IP cannot be reached externally on an instance. Shows with java.net.SocketException: Network is unreachable is the error within the MC server console. Players can connect to the server, but it cannot reach outside itself if you will.
Additional information below:
I can connect to anything I have within AMP. For example, my minecraft sever, palworld and terraria. I can reach it via my public IP address:8080 as well so clearly its getting out of my network. Internally it seems to not be reaching the outside world, its such an odd problem. Further information: Public IP with Frontier (fiber) and I have an eero pro 7 max with a eero pro 7 attached to it for ethernet backhaul.
Steps to reproduce:
- Set static IP in Ubuntu under netplan
- Restart netplan
- Start Minecraft instance
Actions taken to resolve so far:
- Changed IP back to DHCP
- Changed IP back to static (to ensure it was working with ip a)
- Changed DNS servers within ubuntu itself to ensure connectivity
- Restarted server multiple times
- Restarted AMP instance multiple times
- Verified Realtek 1gb nic drivers are installed