I have tried to get an IP renewal from the command line and I do not get an error, it does nothing at all and the command line returns nothing. The DNS and DHCP client services are indeed running on the computer in questions. The DHCP traffic is blocked after you enable the 'Do not allow exception' and 'Prohibit unicast response to multicast or broadcast requests' Windows Firewall settings in Windows 7 or in Windows Server 2008 R2 Karen Hu TechNet Community Support. Try ipconfig /renew Pleaes also refer to the following link and see if it fits your situation. Temporarily disable firewall and anti-virus to check if issue persists. Hi Jean, Please check the services, make sure that the DHCP service and DNS service are started. This can be beneficial to other community members reading the thread. Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. Hi If you renew the ip from a command prompt what happens or what errors do you get? Can you swop the network point on the switch to another port and check? Is the date and time correct on the Win7 computer? Also check the security policy for 'Prohibit unicast response to multicast or broadcast requests' Enabled? If so disable it. I feel I should have caught that mistake sooner. I would like to thank everyone who tried to helpe me and I want to apologize for this. I changed the setting back to both which has always been the default and the computer is getting it's DHCP address just fine now. That caught my eye when I was giving it another look to check the MAC address for what must have been the 5th time. When I created the MAC address reservation, I don't know how this happened, but the reservation was set for bootp only. All the trouble shooting and frustration and I just found the problem. The computer ins question is a 64 bit OS but several of the others are also. The computers are a mix of Windows XP Pro and Windows 7 Pro. All of the other computers at that site are getting DHCP addresses just fine. The DHCP server is on a Windows 2012R2 domain controller. I have turned off the Windows firewall thinking that may have been the problem but it still won't get a DHCP address. I have checked the reservation to make sure I have the correct MAC address entered andI have tried numerous other troubleshooting steps to no avail. If I assign a static IP address to this one computer it works just fine. I have one Windows 7 computer that will not pull an IP address from DHCP. I have a DHCP server at each of the sites using DHCP reservations to assure the computers always get the same IP. I manage a network that has 60+ computers across two different sites.
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