Not sure how it works on Linux, but on Windows, if the acquired DHCP IP has a lease time of 60 minutes, then Windows will try to renew that IP anytime after 1/2

Not sure how it works on Linux, but on Windows, if the acquired DHCP IP has a lease time of 60 minutes, then Windows will try to renew that IP anytime after 1/2 the lease time (i.e. 30 minutes). This is why in Corporate environments good practice is to keep lease time 1 hour or more.