Added client to dhcp can't get lease line
i have something strange thing going on my dhcp server, i added a client's mac but he can't get a lease line when the "Deny unknown clients" is checked, when checking for his mac it wasn't found, like if it want aded and i am sure i did, so i tried to ad the mack again just to make sure, but i got the message: This Hostname, IP or MAC address already exists. the client can get the ip only if i remove the check mark and he looses the ip again when the maxium lease time is reached.
using the 1.0.1 jan 24 snapshot
help is apreciated
Anything in the dhcp systemlogs for this mac?