DHCP running on Win 2K Server missing addresses in one scope

hello. searched these forums couldn't quite find looking for. 
i have dhcp running on windows 2000 server (sp4) , 1 of scopes seems screwed up:

1) scope has total of 244 addresses - range 10.10.141.5 through 10.10.141.254
2) exclusion 10.10.141.45 through 10.10.141.50
3) clicking on "display statistics" see 244 total addresses, 238 in use, 6 available
4) lease set 2 hours
5) looking @ list of assigned addresses count 87... 87 used + 6 available not equal 244!!
6) if reconcile/verify dhcp finds missing addresses , lists them. show lease expire in 2 hours , dummy mac.
7) addresses disappear again
8) no ip's reserved 2 dozen @ 1 point in past. they've since been removed.

i've read on how restore corrupted dhcp database but, technically, database isn't corrupt. it?
how can recover missing ip's??
thanks!!

hi rudedog42,
- try change lease duration 30 minutes,
- make sure 'enable dns dynamic updates according settings bellow' option checked
- make sure 'discard , ptr records when lease deleted' checked too
- make sure 'dhcp only' (nor 'bootp only' or 'both' ) option checked on
'assign ip address dynamically clients' field.
wait couple of hours , check statistics again....
good luck,
marcelo.

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marcelo braga -- um discipulo de jesus -- mct/ mcsa/ mcitp/ mcts exchange 2007.

Windows Server  >  Network Infrastructure Servers