You could try running Xubuntu in a VirtualBox virtual machine. See https://ubuntuforums.org/showthread.php?t=2456645&p=14014685#post14014685 for details.
Type: Posts; User: SeijiSensei; Keyword(s):
You could try running Xubuntu in a VirtualBox virtual machine. See https://ubuntuforums.org/showthread.php?t=2456645&p=14014685#post14014685 for details.
All I can think of is that you're running some kind of firewall on the Ubuntu side which keeps packets from being sent to 255.255.255.255.
Is this a vanilla installation, or did you add some rules...
I'd start by running
sudo dhclient -v
and see if it reports any errors. If you have multiple network interfaces, add the interface name that points to the DHCP server (e.g., enp4s0, wlp2s0,...