Extend Link Lease For Free

Changing the lease time through the DHCP server Open the Run dialog box or Windows + R. Type dhcpmgmt.msc and click OK. Look for the DHCP scope for which you want to change the lease time and click on its properties. Navigate to the ?Lease Duration for DHCP clients? section.

When the lease is up it will ask to renew or get a new IP address. A typical home router uses a subnet of 255.255. 255.0 which has 253 IP addresses available to hand out to connected devices.

Since the default DHCP address range is between 100 and 149, you'll want to avoid all of the addresses between 192.168. 1.100 and 192.168. 1.149 when you're assigning static IP addresses. That leaves the ranges from 2-99 and from 150-254 wide open, which is usually plenty for most home networks.

The DHCP lease value is referred to in several ways. This value is known as the Address lease period on a TP-Link router, for example. For this sort of router, you can set the time in minutes up to a limit of 2880 (the equivalent of 48 hours).

Yours won't change often, but sometimes, due to system maintenance, you'll get a short-term DHCP lease. A short-term DHCP lease is a temporary IP address that expires after a set amount of time. A device that's set up correctly will auto renew the DHCP lease. There should be no halt to service.

In short, by selecting the longest DHCP lease time possible, you can reduce the odds of a device having its IP address changed. A lease that never expires is ideal, but even extending the lease time from a day to a week reduces the number of potential address changes from 365 to 52.

This setting is located on the 'Home segment' page in the 'IP settings' section. To change the parameters of an existing home network segment in the 'IP settings' section, click 'Show DHCP settings' and set the required value in seconds in the 'Lease time' field.