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Forum Discussion
DHCP address reservations had not been respected
I am having similar issues with a RS280 and firmware 1.0.6.16. We recently had an extended power outage that outlasted my UPS. When the power returned, most of the DHCP address reservations had n...
The key to solving many networking problems is to be able to replicate the problem and record useful information while doing so.
This DHCP issue is a difficult situation to diagnose because experimenting would mean cutting power to the house to force (a) the router to reboot and (b) every device to request network connection.
Does the RS280 have "Debug options"? on the Orbi product line, there is an undocumented web page called "debug.htm" (i.e. <address of the router>/debug.htm) which offers the ability to capture the traffic on the WAN and LAN ports (not the WiFi):
If this is set to begin capturing when the router starts, it should record the DHCP conversations between the router and devices on the LAN. The internal storage will overflow pretty quickly, so it is essential to stop the capture and write the results to a computer before the initial information is lost.
Certainly not a trivial undertaking.
This DHCP issue is a difficult situation to diagnose because experimenting would mean cutting power to the house to force (a) the router to reboot and (b) every device to request network connection.
I think manually powering down the router and some of the ethernet devices might be enough. I don't see any need to cut power to the house.
But still, this could be hard to replicate. My guess is is that there is short window when the router boots when the DHCP service is running but the reservations are not yet loaded from the config file.
