Rename the file to network.cfg.old . This preserves your old settings in case you need to reference them later.
When the web UI is dead, the physical console is your best friend. unraid reset network settings
(Optional) Locate if it exists. This file stores MAC address assignments. Rename the file to network
When the server comes back up, it will act like a fresh install: DHCP enabled on the first active NIC. Check your router’s DHCP table for the new IP, then access the web UI. unraid reset network settings
network.cfg (and network-rules.cfg if it exists). Alternatively, you can rename them to network.cfg.old if you want a backup. Step 4: Reboot Your Unraid Server Safely eject the USB flash drive from your computer.