So we have 32 buildings and DHCP scopes for each one all that works etc. We have a new building that replaced one the settings are the same. In that building we have a Scope for the IP phones. In that scope most work fine get their 30 day lease but 2 keep failing and going offline. All we can find is in DHCP they are getting an hour lease vs the 30 days and in the logs I can see about every hour they get a new lease, and go offline while its doing it. I've swapped those phones and the new ones do it. Is there any reason a specific device would get a different lease time then the rest of them? On the devices they are all set to just DHCP nothing special.