I have Windows Server 2008 R2 installed DHCP Service. DHCP rang is (192.168.2.11 to 192.168.2.199) and lease timing is (8 hours). this rang is about 190 IPs and total workstations in my company are 150. This DHCP Server was working fine for last 4 months. but now its not assigning IPs automatically what can be the reason. is there any release timing issue or any other reason can be.
Please help me to fix my this problem.