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iP address issue with laptop

Posted on 2014-09-08
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Last Modified: 2014-09-10
Hi Expert

There is one laptop that keeps asking for the same IP address (x.x.x.x) even after we tried many options (ipconfig /release/renew, netsh winsock reset, reserving a different IP on the DHCP server for its MAC, rebooting). It seems some state got stuck (even after rebooting it).


Windows 7 OS client

Windows 2003 R2 OS server of DHCP server

Any ideas?
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Question by:Jerry Seinfield
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Expert Comment

by:pjam
ID: 40310440
Does it show the correct DNS server and domain?
Have you tried a static IP #?
Perhaps the NIC is bad, what does it look like in Device Manager?
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Author Comment

by:Jerry Seinfield
ID: 40310678
I just went through DHCP console and noticed there is a reservation for that IP

I tried to reserve a different IP on the DHCP for its Mac and did not work

Any ideas?

Do you believe is related to http://support.microsoft.com/kb/167014 ?

I would need to troubleshoot all elements (client, helper=Aruba and server).
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pjam earned 500 total points
ID: 40310709
I am pretty sure a MAC number can only reserve one IP.  Was the MAC in that reservation the MAC for the notebook or something else?
What happens when you ping that IP number?
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Author Comment

by:Jerry Seinfield
ID: 40315417
Something weird is happening. Another laptop is ending up with the same x.x.x.x and it can't use the network.
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