Dual DHCP DNS Server doesn' t respond to DHCP request

[Peter Kolibac]

Installed Dual DHCP Server on Windows 10 64 Pro Computer to test. Used simplest settings as prescribed on web then continuing by adding [DNS_ALLOWED_HOSTS] & [HTTP_INTERFACE] sections after it didn't and still doesn't work. Used 'Wireshark' which showed the DHCP broadcast request from a test workstation but receiving no response from it. Removed firewalls just in case but still nothing. LOG file doesn't appear to show any errors or is it possible something is missing but not responded to.

INI FILE

[LISTEN_ON]
10.1.3.101

[RANGE_SET]
DHCPRange=10.1.2.100-10.1.2.105
SubnetMask=255.255.0.0
Router=10.1.0.1

[DNS_ALLOWED_HOSTS]
1.0.0.1-255.255.255.254

[HTTP_INTERFACE]
HTTPServer=10.1.3.101:6789

LOG FILE

[22-Jul-21 14:34:33] Dual DHCP DNS Server Version 7.40 Windows Build 7050 Starting...
[22-Jul-21 14:34:33] Starting DHCP Service
[22-Jul-21 14:34:33] Starting DNS Service
[22-Jul-21 14:34:33] DNS Logging: Normal
[22-Jul-21 14:34:33] DHCP Logging: Normal

[Ian Jackson]

Try disabling the firewall. if this resolves the issue then add an incoming rule to allow DHCP requests and enable the firewall again.
Had exactly the same issue