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Reset DCHP leases ?
Posted: Tue Jul 11, 2017 8:58 pm
by Rooster
Is there a way to reset the DCHP lease(s) ?
I set a fixed ip to one of my devices, and now I'm seeing both the set address and the original ip when I use a scanner !
I'm assuming the old address will vanish once the lease expires, but is there way to force this please ?
Re: Reset DCHP leases ?
Posted: Wed Jul 12, 2017 4:01 am
by Lantis
You can reboot the router, or depending on the device and Operating System, you can renew the IP Address from the device itself.
Re: Reset DCHP leases ?
Posted: Wed Jul 12, 2017 6:33 pm
by Rooster
Rebooted both the device (Amazon fire tv box) and router... but that didn't cure it.
I set the lease time to 1 hour (could it be less?) and left it overnight, and now it only has the set address... so obviously the DCHP assigned one timed out and vanished !
There must be an easier way ?
Re: Reset DCHP leases ?
Posted: Wed Jul 12, 2017 8:01 pm
by Lantis
The router stores DHCP leases in RAM. When you reboot it, they disappear.
I guess the device must also need to actively refresh it's IP
In general, rebooting a device does not refresh its IP. You need to actively perform this action.