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Forum Discussion
DHCP requests not logged consistently
My Orbi log files will show "DHCP IP" entries sometimes, and not other times. If I reboot my RBR50, then "DHCP IP" requests are logged, reboot again and they are NOT logged, reboot again and it star...
I have had my systems log file not report any DHCP IP entries for days. Then once rebooted, I would see each device make the DHCP IP entry in the log file once every 12 hours, which mismatches the 24 lease time. That is another anomoly, anyone else seeing the "DHCP IP" entry every approximately 12 hours rather than 24 hours for each MAC address?
CrimpOn, I have rebooted devices after rebooting the router. When the RBR50 is not logging DHCP IP entries, the rebooted device and even any new device off for over 24 hours is not logged.
CrimpOn wrote:Interesting issue, mixing DHCP and Access Control. My guess is that the device in question did not actually renew the DHCP lease when the Orbi was rebooted. No renewal: no log entry.
DHCP is more complicated than I had ever imagined. When the device receives an IP assignment using DHCP, it knows how long the lease is for. There is no reason to ask for another until the proper time (when 1/2 of the lease time remains).
How about this test: When the Orbi is rebooted, also reboot the device.
