I have a customer who keeps running out of addresses on multiple segments. Their lease time is set to 12 hours, they have about 100 workstations per segment, yet they keep going through all 210 addresses.
They end up unloading dhcpsrvr, deleting all the leases, then reloading it.
They haven't made any changes to their server, so I'm not sure why this is suddenly a problem.

Please tell me someone has an idea.