Navigate to the following directory on your flash drive: /config/
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Once logged in, type the following command and press Enter: unraid reset network settings
The nerve center of Unraid networking is the /boot/config/network.cfg file. This simple text file defines the essential parameters: the Ethernet interface name (e.g., eth0 or br0 ), the IP address (static or DHCP), the gateway, and DNS servers. Because the OS runs in memory, changing settings in the GUI writes to this file, but the active network state lives in the system RAM. A "reset" essentially means either overwriting the memory state or rewriting the configuration file on the boot drive to force a fresh start on reboot.
Leave Unraid set to Automatic (DHCP) . Instead, log into your home router and create a DHCP Reservation (sometimes called Static DHCP) for your Unraid server's MAC address. This ensures Unraid always receives the exact same IP address from your router, without the risk of an internal configuration mismatch locking you out. Navigate to the following directory on your flash
Rename the file to network.cfg.old . This preserves your old settings in case you need to reference them later.
Properly power down the server by holding the power button (not ideal, but necessary if you can't SSH). Remove the bootable USB drive. Can’t copy the link right now
Delete or rename the config file and reboot:
Once the files are gone, plug the flash drive back into your server (if you removed it) and power it on.