System Log entry question

Can someone explain:
Jan 14 09:16:49 dnsmasq-dhcp[1445]: DHCPINFORM(br0) 192.168.1.231 b8:ac:6f:a4:16:7a
Jan 14 09:16:49 dnsmasq-dhcp[1445]: DHCPACK(br0) 192.168.1.231 b8:ac:6f:a4:16:7a Studio-XPS

For this particular PC these entries repeat at least once every 10 minutes. Sometimes they are only 1 minute apart. Odd, as this PC is sitting idle for most of the day.