Windows 7 DHCP/Networking Issue
A Windows 7 workstation was joined to the network through a Netgear Switch connected to a Linksys Wrt54G Router. Now the PC has been moved and is cabled directly to the Router, but just hangs at "Identifying" and won't draw an IP Address. The Network Map shows the PC as connecting through a switch, even though that's no longer the case. Replacing the NIC and the Cable didn't help, and the Vista PC connected right next to it has no issues. A static IP w/DNS entries gets us the Internet, but not the Server. Any suggestions? Thx in Advance ...
March 1st, 2010 10:10pm

Check to see if there is a more up to date firmware for the router - the Linksys WRT54G seems to be causing problems for Windows 7 users.... Failing that, try disabling IPv6 on the Windows 7 machine to see if that helps...
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March 1st, 2010 11:42pm

thx Chris ... The firmware is the latest (although the Model is not ....) and disabling IPV6 didn't help. Does it make sense to you though that the PC could get an IP address when it's first passed through a switch, but not when it's cabled directly to the Router?
March 2nd, 2010 1:06am

Not really - but here's something else to try. Try manually setting the speed of the network card to 10Mbps instead of Auto or 100Mbps.
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March 2nd, 2010 1:26am

Hi DMillerAssociates,Try this:1. Click the Start orb2. Type cmd in the search box and open the command prompt3. Where the cursor is type: ipconfig /release4. Then type: ipconfig /renewThat will reset the network adapter to the different connection.Did that help?
March 2nd, 2010 1:50am

Thx ... I tried that before I tried swapping out the NIC though. I'm going to run it through a switch again and see if it connects. Maddening ... I've really been promoting Windows 7 too ....
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March 2nd, 2010 3:54am

Nope tried that too, along with the FLUSH and REGISTER DNS options. This stupid computer thinks it's still hooked up to the network through a switch, and just won't pull an IP address. Someone had suggested a static IP and using the Router's IP Address as the primary DNS Server when I reported this problem earlier; that gives the computer Internet access but it won't see the Server or any of the other computers in the network.
March 2nd, 2010 3:58am

You say you have a server on the network. First of all, if the server has DNS Server running, then THAT is the Primary DNS IP address that you assign. Secondly, does the server also have the DHCP Server service running? If so, then use that one and disable DHCP on the router. If it doesn't, then it may be more worthwhile to install it and then disable DHCP on the router.
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March 2nd, 2010 11:02am

I suggest you temporary disable the antivirus and check the result. If the issue persists, I suggest you right-click on the icon in Notification Area, and then choose “Troubleshoot problems”. The system will help you to refresh IP configuration. Arthur Xie - MSFT
March 3rd, 2010 6:08am

My God, why are there four posts here marked as answers when none of them fixed the persons issue? These forums are so friggin misleading!
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November 5th, 2010 2:10pm

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