Originally posted by OliXNet
Both ethernet adapters on olixnet have the same ip - 172.16.19.32
You need to assign different IP addresses to each network device, they can not be the same.
Also, you haven't specified a range of IPs to lease for your workstations (only bootp).
ipcalc -n 172.16.19.0 -m 255.255.252.0
Also your 172.16.19.0 is not a valid network address for that subnet., that's why /24 worked ok.
Here's a howto if you need it: http://www.brennan.id.au/10-DHCP_Server.html