Assuming your server is on the same subnet as the client PC’s.
Change this line in the ltsp.conf file:
[CODE]dhcp-range=192.168.1.10,proxy[/CODE]
to
[CODE]dhcp-range=192.168.101.240,proxy[/CODE]
then restart dnsmasq
[CODE]sudo /etc/init.d/dnsmasq restart[/CODE]