- Annoyance
This issue appears to be occurring every few days. I can't ping any hostnames from the CLI, and /etc/resolv.conf is blank. I do not use DHCP for the server address, and my DNS servers are statically assigned.
In addition, when it happens I am unable to reboot the server as the shares will never unmount as it constantly tells me /mnt/cache is busy. There are definitely no clients holding shares open when this happens.
I have attached diagnostics of when the server is working, and will attach again when it next fails. I have made one change today after the last failure, and that was to disable IPv6. My dual stack ISP connection isn't always the best when it comes to IPv6 working all the time, so I've disabled IPv6 to see if that helps, since this seems to mainly be a network issue.