thank you sirIt looks like you are logging very low priority messages. That's not an error, just a status update.
However, the fact that a device is polling for DHCP renewal every 10 seconds is not a good thing.
It looks like a TP-Link device on your network might be asking your Asus router for an address, is being sent one, but that reply is not making it back to the TP-Link device.
Either that, or you have configured a 20s DHCP lease period in your router which seems unlikely.
Or something else a bit more exotic (multiple DHCP servers on the network?).
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