Just found out that Ubuntu 24.04 server doesn’t use dhclient anymore and uses dhcpcd instead for obtaining dhcp address leases.

To renew your dhcp address, do the following:

sudo dhcpcd -k
sudo dhcpcd

That’s it, Enjoy!

Sources:

https://askubuntu.com/questions/1511816/how-to-renew-ip-address-with-ubuntu-24-04