I recently inherited a new proxmox server. It seems to have some ipv6 issues. When I run "apt-get update && apt-get upgrade && apt-get dist-upgrade" it hangs. If I run "apt-get -o Acquire::ForceIPv4=true update && apt-get -o Acquire::ForceIPv4=true upgrade && apt-get -o Acquire::ForceIPv4=true dist-upgrade" it works. I need help troubleshooting this. Please help. Edit: After waiting for a long time (approx 10 mins), this command worked. What could be causing this? Rerunning the command results in a similarly long wait time. All other ipv6 devices on the same network work just fine.