$ cat /var/log/messages
...
Jan 12 14:45:39 localhost dhclient: No working leases in persistent database - sleeping.
Jan 12 14:48:24 localhost dhclient: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 8
Jan 12 14:48:32 localhost dhclient: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 21
Jan 12 14:48:53 localhost dhclient: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 7
Jan 12 14:49:00 localhost dhclient: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 15
Jan 12 14:49:15 localhost dhclient: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 10
Jan 12 14:49:25 localhost dhclient: No DHCPOFFERS received.
Jan 12 14:49:25 localhost dhclient: No working leases in persistent database - sleeping.
Jan 12 14:49:58 localhost dhclient: DHCPDISCOVER on wlp5s0 to 255.255.255.255 port 67 interval 4
Jan 12 14:50:02 localhost dhclient: DHCPDISCOVER on wlp5s0 to 255.255.255.255 port 67 interval 7
Jan 12 14:50:09 localhost dhclient: DHCPDISCOVER on wlp5s0 to 255.255.255.255 port 67 interval 8
Jan 12 14:50:17 localhost dhclient: DHCPDISCOVER on wlp5s0 to 255.255.255.255 port 67 interval 18
Jan 12 14:50:35 localhost dhclient: DHCPDISCOVER on wlp5s0 to 255.255.255.255 port 67 interval 10
Jan 12 14:50:45 localhost dhclient: DHCPDISCOVER on wlp5s0 to 255.255.255.255 port 67 interval 14
Jan 12 14:50:59 localhost dhclient: No DHCPOFFERS received.
Jan 12 14:50:59 localhost dhclient: No working leases in persistent database - sleeping.
Jan 12 14:52:42 localhost dhclient: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 7
Jan 12 14:52:49 localhost dhclient: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 10
Jan 12 14:52:59 localhost dhclient: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 21
Jan 12 14:53:20 localhost dhclient: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 21
Jan 12 14:53:41 localhost dhclient: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 2
Jan 12 14:53:43 localhost dhclient: No DHCPOFFERS received.
Jan 12 14:53:43 localhost dhclient: No working leases in persistent database - sleeping.
Jan 12 14:57:05 localhost dhclient: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 8
Jan 12 14:57:13 localhost dhclient: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 12
Jan 12 14:57:25 localhost dhclient: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 19
Jan 12 14:57:44 localhost dhclient: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 16
Jan 12 14:58:00 localhost dhclient: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 6
Jan 12 14:58:06 localhost dhclient: No DHCPOFFERS received.
Jan 12 14:58:06 localhost dhclient: No working leases in persistent database - sleeping.
Jan 12 14:58:15 localhost dhclient: DHCPDISCOVER on wlp5s0 to 255.255.255.255 port 67 interval 4
Jan 12 14:58:19 localhost dhclient: DHCPDISCOVER on wlp5s0 to 255.255.255.255 port 67 interval 4
Jan 12 14:58:23 localhost dhclient: DHCPDISCOVER on wlp5s0 to 255.255.255.255 port 67 interval 6
Jan 12 14:58:29 localhost dhclient: DHCPDISCOVER on wlp5s0 to 255.255.255.255 port 67 interval 13
Jan 12 14:58:42 localhost dhclient: DHCPDISCOVER on wlp5s0 to 255.255.255.255 port 67 interval 15
Jan 12 14:58:57 localhost dhclient: DHCPDISCOVER on wlp5s0 to 255.255.255.255 port 67 interval 9
Jan 12 14:59:06 localhost dhclient: DHCPDISCOVER on wlp5s0 to 255.255.255.255 port 67 interval 8
Jan 12 14:59:14 localhost dhclient: DHCPDISCOVER on wlp5s0 to 255.255.255.255 port 67 interval 2
Jan 12 14:59:16 localhost dhclient: No DHCPOFFERS received.
Jan 12 14:59:16 localhost dhclient: No working leases in persistent database - sleeping.