I recently saw an error "Conflicting DHCP Range" on my Airport Extreme (newest model), via Airport Utility (on both Mac and iOS). The error usually, but not always, appeared in those apps, despite no apparent network changes. I didn't think to check whether the physical light on the router always matched the app's status. I never noticed actual network problems despite the error message. The Airport's WAN port is not connected to another router, and there should be no other DHCP servers on the network. I had another identical Airport Extreme wirelessly extending the network (but even after I disconnected it, the error remained). Can anyone please explain the possible reasons? If I connected a device with a static IP within the allowable DHCP range (even if no actual assignment or attempted assignment of that IP occurred), would that error occur? I connected devices that may have had static IP's within the DHCP range. However, even after changing the DHCP range to ensure it didn't contain those IP's, and even after disconnecting those devices entirely, I still saw the error. Does the error mean a problem occurred at any time in the past, or does it mean there is a "current" problem (e.g., since the last restart of the router)? I finally tried the option to "ignore" the error, which seemingly required clicking "Update" to restart the router, and the error went away. Did that merely "dismiss" that specific past "error report", or will the router now ignore all errors of this type from now on? It seems odd that merely dismissing an error report would restart the router! If future error reports will be suppressed, can I "unignore" the error (without resetting the router entirely)? Can I get any more information about the past error (such as the IP, or date/time)?