Just update the process,
root@bela:~# sudo ifdown wlan0; ifup wlan0;
Killed old client process
Internet Systems Consortium DHCP Client 4.3.5
Copyright 2004-2016 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on LPF/wlan0/9c:ef:d5:f8:5a:7a
Sending on LPF/wlan0/9c:ef:d5:f8:5a:7a
Sending on Socket/fallback
DHCPRELEASE on wlan0 to 192.168.1.1 port 67
Internet Systems Consortium DHCP Client 4.3.5
Copyright 2004-2016 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on LPF/wlan0/9c:ef:d5:f8:5a:7a
Sending on LPF/wlan0/9c:ef:d5:f8:5a:7a
Sending on Socket/fallback
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 5
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 11
DHCPREQUEST of 192.168.1.101 on wlan0 to 255.255.255.255 port 67
DHCPOFFER of 192.168.1.101 from 192.168.1.1
DHCPACK of 192.168.1.101 from 192.168.1.1
bound to 192.168.1.101 -- renewal in 31 seconds.
Does this meaning work?