DHCP address available= 0%. I can't increase the range. As a result any new pc can't get IP. My DHCP lease reserve the IP address for 2 days. But I am pretty sure I can get some free IP if I can detect which are not connected in Network at the moment. How can I find in DHCP "Address Leases" which are connected & which are not. I don’t have time to ping to test. Is there any quick way to find who are not connected, if I can detect then I will delete them to increase DHCP availability. Thanks in Advance.