Attendance Extension IP issue

Hello Mehedi,
Please the Attendance Extention has an issue.
When you enable IP restriction and you enter the IP address of your computer in the whitelist
and you try to checkin, you get an error that you cannot checkin from this IP.
I tried this on my own website and also from your demo site and its still the same.
Can you also do an IP range so that you don’t have to enter all IP addresses for employee computers when
the network is on DHCP.
Please look into this for me.
Thank you.
Sam