Not really. The DHCP server may have many valid reasons for reissuing a technically valid lease, such as it being restarted and losing its table of valid leases

Not really. The DHCP server may have many valid reasons for reissuing a technically valid lease, such as it being restarted and losing its table of valid leases. As I pointed out in a response above, the DHCP protocol makes it clear that devices should re-verify their addresses after waking up.