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Static IP computers still showing up in DHCP

I have 4 computers that I set to a static IP address over a month ago. I have noticed in the DHCP leases that they are still pulling IP addresses every 6 days. I have checked the machines and they report the correct static IP addr (via the ipconfig /all). I've tried deleting the DHCP entry and flushing the the dns cache on the computers but still when they reboot the computer shows up in DHCP again. I have approx 20 machines and this one office is the only ones that are having this problem. Can anyone give me some suggestions?

ddawson100

Can you post the IPCONFIG /ALL? What you're saying doesn't make sense because if you use static IPs you're not going to have them request an address. In this output below you'll see that DHCP is enabled on this NIC: "Dhcp Enabled. . . . . . . . . . . : Yes"

Windows IP Configuration

Host Name . . . . . . . . . . . . : GregL
Primary Dns Suffix . . . . . . . : -----.com
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : -----.com
-----.com

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : -----.com
Description . . . . . . . . . . . : Broadcom NetXtreme 57xx Gigabit Cont
roller
Physical Address. . . . . . . . . : 00-18-8B-76-99-84
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 172.16.0.111
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 172.16.0.1
DHCP Server . . . . . . . . . . . : 172.16.0.12
DNS Servers . . . . . . . . . . . : 172.16.0.12
172.16.0.16
Primary WINS Server . . . . . . . : 172.16.0.22
Lease Obtained. . . . . . . . . . : Monday, October 10, 2011 1:58:10 PM
Lease Expires . . . . . . . . . . : Thursday, October 13, 2011 1:58:10 P

sandyve

ASKER

I agree that it doesn't make sense! It's drivning me nuts! I couldn't get the screen shot of the ipconfig /all to paste in here but it does show that DHCP is not enabled. I checked the mac address and it matches the one listed in DHCP. The ipconfig /all shows the correct static ip address that I assigned. The DHCP IP address does not show anywhere.

ASKER CERTIFIED SOLUTION

ErikCamacho

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sandyve

ASKER

My static addresses are from .1 to .99 and my DHCP range is .150 to .200

ddawson100

Oh, wait - did you configure the Alternate IP? What I'd do at this point is just turn off DHCP and see what happens. If you want to make it faster, make your DHCP lease time something like 30 minutes so you don't have to wait days.

No need to do screen shot. Just right-click the title-bar in the CMD box, click Edit -> Mark then drag over your CONFIG /ALL output then right-click the title bar again and choose -> Edit -> Copy. Then paste it here. But on second thoughts, if you've confirmed it is set NOT to use DHCP then that's all we need here.

ddawson100

What IPs are your computers getting. In the DHCP range or static range?

abedmoati

check if u have configured an alternative IP adress ...
change the range of dhcp try to set static ip not from the same range of dhcp & flash the dns

sandyve

ASKER

I don't have the alternate IP configured and the address that shows in DHCP is an address inside of the DHCP range. The IP address that shows up in the DHCP does not show up on the computer itstelf.

ErikCamacho

Try updating your network card driver. Then re-input your settings.
If you have the latest driver try s downgrade.

ddawson100

What does this mean - "IP address that shows up in the DHCP does not show up on the computer itself." What is showing up on that computer if not the address that is showing up in DHCP? Are you saying that the computer two IP addresses - the one that you assign AND an address from the DHCP scope?

On second thoughts it might be helpful to see your IPCONFIG /ALL here after all.

sandyve

ASKER

Erik, the network card was okay. I went back and put in a reservation and that seems to be working. Thanks for help!