EX-4300: DHCP - No available addresses

Hi,

I'm attempting to configure an EX-4300 (version "17.3-20180405.0 [builder]") to operate as a DHCP server on one of my VLANs (id=24).  "show dhcp server statistics" indicates No available addresses >0 (=N) and no DHCPOFFERs are being sent in response to DHCPDISCOVER (count = N), but a range has been specified (see below) and no clients have been bound yet.  IRB.24 address is 192.168.23.2.

set system services dhcp-local-server group DHCP1 interface irb.24
set access address-assignment pool POOL1 family inet network 198.168.23.0/24
set access address-assignment pool POOL1 family inet range RANGE1 low 198.168.23.200
set access address-assignment pool POOL1 family inet range RANGE1 high 198.168.23.240
set access address-assignment pool POOL1 family inet dhcp-attributes router 198.168.23.2
set access address-assignment pool POOL1 family inet dhcp-attributes server-identifier 198.168.23.2
set access address-assignment pool POOL1 family inet dhcp-attributes maximum-lease-time 43200
set access address-assignment pool POOL1 family inet dhcp-attributes option 42 ip-address 10.11.13.6

set access address-assignment pool POOL1 family inet dhcp-attributes name-server 8.8.8.8

Any suggestions would be much appreciated.

Thanks!