Deleted reservation still exists somewhere on DHCP server

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hi.

have changed computers on company's network, deleted reservations (windows server 2003), , now, when want add new reservation, following message: "the specified ip address or hardware address being used client".

1. yes, new computer connected network.
2. yes, mac address correct.
3. no, ip address not used other computer. no ping, no nslookup, no dns record ip address.
4. positive mac address not issue here, ip address reserved another, old computer not in use anymore.

believe or not, had same problem last year , have resolved it, don't remember how :) had log file on server (i don't know which). totally stuck , hope here can me.

thank in advance.

could please check ip address lease



Windows Server  >  Network Infrastructure Servers



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