DHCP Issue.

Hi Everyone.
I am having an issue with our LAN DHCP clients obtaining an IP from our DHCP server.
I captured some packets using wireshark while trying to obtain a IP and this is what i found.
I get the discover, offer, request and then ACK, but for some reason the PC starts the procedure over again even after ACK was received. Everything looks good withing the DHCP transaction except the PC does not keep the IP handed out to it. The ACK has a
valid IP within scope, mask, gateway and all the info is there.
Funny thing is we have wireless clients able to obtain IP's just fine. This only is a problem for our wired clients. Also the wireless DCHP process seems identical to the LAN DHCP process yet our LAN PC's keep sending out a discover even after ACK received.
I tried using a non-Domain PC and get the same result.
Any ideas? Thanks!

Is there a Linksys or some other retail-box store router that someone may have plugged in on the network that has DHCP running on the 192.168.x.x range?
Ace Fekay
MVP, MCT, MCSE 2012, MCITP EA & MCTS Windows 2008/R2, Exchange 2013, 2010 EA & 2007, MCSE & MCSA 2003/2000, MCSA Messaging 2003
Microsoft Certified Trainer
Microsoft MVP - Directory Services
Complete List of Technical Blogs: http://www.delawarecountycomputerconsulting.com/technicalblogs.php
This posting is provided AS-IS with no warranties or guarantees and confers no rights.

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    > and it doesn't matter if it's dhcp or statically assigned, that
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    Nov 14 00:01:49 bumblebee bootpd[190]: service time 0.000391 seconds
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