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DHCP server on a Windows 2008 R2 is not leasing all IP include in the scope range

Posted on 2014-10-06
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Last Modified: 2015-06-27
Hi experts, I have a weird behavior in my DHCP server, I have defined a Scope with 204 addresses,  I have excluded 39 addresses, 2 are listed BAD as addresses (there is no problem I know what equipments are using the addresses) but the DHCP server only lease 70, I'm missing 93 addresses because the DCHP statistics says that I have 0 available addresses and 166 leased, I have a list of every address in the scope and the 93 missed addres are not listed, if I reserve some of these addresses using the MAC address of the client the client takes it, but I can not find a way to use the missed addresses without reserving them; I migrated the original DHCP server databases from a Windows 2003 server, I have tried to solve the problem excluding some missed addresses and after a few minutes deleting the addresses from the exclusion list but It didnt work.

Any idea?
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Question by:portiz60
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by:Alan Hardisty
ID: 40364527
What are the IP Addresses that you have configured in the lease, what is your Subnet Mask and can you show some screen-shots of the config please.

Thanks

Alan
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portiz60 earned 0 total points
ID: 40436367
in this case the solution was to delete and create the scope again.
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by:Seth Simmons
ID: 40854422
This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
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