Turns out this looks like it may be a bug in the current upgrade 6.38.5 as others are expressing the same problem here
http://forum.mikrotik.com/t/ros-6-38-serious-dhcp-server-problem/105259/1
Turns out this looks like it may be a bug in the current upgrade 6.38.5 as others are expressing the same problem here
http://forum.mikrotik.com/t/ros-6-38-serious-dhcp-server-problem/105259/1