Why Does a Linux Server Have a Different Route After Restart?

A manually added route may disappear at reboot or be replaced by a network manager, DHCP option, or cloud initialization process.

What to check

Inspect active routing, persistent network configuration, interface manager, DHCP settings, and startup automation. Compare routes before and after restart.

Recommended next step

Define the route in the system’s managed configuration and verify it during a controlled reboot. Informatix Systems can troubleshoot Linux networking and server setup.