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DHCP Semaphore timeout

Posted on 2004-08-26
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Last Modified: 2008-01-09
Event 1003: DHCP
Your computer was not able to renew its address from the network (from the DHCP Server) for the Network Card with network address 000BDBCE8260.  The following error occurred:
The semaphore timeout period has expired. . Your computer will continue to try and obtain an address on its own from the network address (DHCP) server.


I am getting this event on computer on boot. I have w2k3 dhcp server w/ 2k3 dns. dynamic updates is turned on. The DHCP server is not a DC. The computer was added to the DNSUpdateProxy built-in group.

Any advice or things to check. Thanks in advance.
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Question by:gl_3n2k3
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by:Yan_west
ID: 11904328
If the DHCP server works properly on other computers, then this generally means a network or connectivity problem. Try to isolate the physical equipment that connects the workstation in question to the DHCP server...
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Yan_west earned 750 total points
ID: 11904374
DHCP Renewal Failures on Switched Networks
http://support.microsoft.com/default.aspx?scid=kb;en-us;Q168455
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Author Comment

by:gl_3n2k3
ID: 11904409
This event not occurring on one machine. I know its not a connectivity problem. It is occuring on all the computers I have checked. The computer will get an IP despite this event with release/renew. I think it has to do with DHCP updating DNS records but havent been able to determine what config needs to be changed or added.

..i am going to check out your links. I have looked at eventid and other forums prior to posting this.
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Expert Comment

by:XaTe
ID: 11904576
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Author Comment

by:gl_3n2k3
ID: 11906277
<per Microsoft>
Please note that spanning tree is only necessary on ports that connect to other switches (or bridges). Additionally, if Port Trunking or Port Aggregation is enabled on ports attched to DHCP clients, then either disable these features or convert the client to a static IP address if these features are required. Ports that have only clients connected do not need spanning tree enabled. For information on how to do this, please contact the switch manufacturer


Cisco Help indicates the opposite of this. spanning-tree Portfast should be on enabled for clients and off for connections to other switches or bridge. hmmmm.. which is better?

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Expert Comment

by:cgibbon28
ID: 15113403
I have had a simlar problem but it was a DHCP server settings, under the server options I had two DNS server's listed. Changed it back to one and it fixed the problem
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