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SBS DHCP Scope Full - Adding more licenses didn't help

Our business runs on SBS 2000, and for some time I have been aware that the SBS DHCP scope (192.168.16.0) has been  full, with 245 total addresses and 245 in use, with 0 available.  I had assumed that this was because we have 15 clients connected and 15 licenses installed, and perhaps SBS was tying up the others.  These 15 clients were using all available address leases, and deleting one would open up a lease for another client to log on.  I recently purchased an additional 5 licenses to add more workstations, and discovered that we already had 20 licenses installed, and the additional 5 brought us to 25 licenses, but didn’t free up any more addresses in the SBS scope.  Of course, this means no other workstations can join the domain, even though we have 10 licenses installed and unused.  We are now urgently needing more than 15 clients at a time logged on.  Any ideas?
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Irwin Santos
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You're maxxed out on the number of IP leases..... so therefore you need to create another subnet or other configuration of your network.
perhaps you can provdide detail on your network hardware configuration.

Somewhere along the line you need a hardware solution.
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goodtimespowersports
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In my case, I had to first reconcile the address leases in DHCP, then delete the 15 visible address leases, deactivate the scope in DHCP, and then reactivate the scope in DHCP, before all the bogus leases showed up.  I deleted all the bogus leases, and now have 245 total addresses, 10 in use, and 235 available.

Whew!  How many hours of searching Microsoft's SBS website, the Experts-Exchange site, and Google I could have saved if this info had been readily available!  
no problem...I'm glad that you figured it out.