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Windows Vista - DHCP Issue
Vista machines cannot obtain IP address from DHCP when joined to the domain.
Is there anybody that has gotten such problem solved before?
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Answers
Windows firewall is ON.
System obtains IP in workgroup but when joined to a domain, does not obtain IP automatically.
We have a vLAN in place.
Catalyst 4509 as the core for vLAN.
DHCP Server is Microsoft 2003 server which is also on the domain.
ipv6 not yet in use but enabled on the vista machine.
Are u suggesting that ipv6 be disabled on the vista machine?
Another observation:
New IBM Lenovo T61 just brought in. Came with vista from factory.
T61 joined the domain and obtains ip automatically.
Could there be need for a patch on the earlier ones?
Yes, I am saying to disable IPv6 on Vista Machine.
There are plenty of 'improved reliability' patches for Windows Vista.
--
These registry changes may be of use
http://www.reviewingit.com
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This is from the Post I gave you earlier
SYMPTOMS
Consider the following scenario: " You connect a Windows Vista-based computer to a network.
" A router or other device that is configured as a Dynamic Host Configuration Protocol (DHCP) server is configured on the network.
" The router or the other device does not support the DHCP BROADCAST flag.
In this scenario, Windows Vista cannot obtain an IP address.
Back to the top
CAUSE
This issue occurs because of a difference in design between Windows Vista and Microsoft Windows XP Service Pack 2 (SP2). Specifically, in Windows XP SP2, the BROADCAST flag in DHCP discovery packets is set to 0 (disabled). In Windows Vista, the BROADCAST flag in DHCP discovery packets is not disabled. Therefore, some routers and some non-Microsoft DHCP servers cannot process the DHCP discovery packets.
Back to the top
RESOLUTION
Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall your operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.To resolve this issue, disable the DHCP BROADCAST flag in Windows Vista. To do this, follow these steps: 1. Click Start, type regedit in the Start Search box, and then click regedit in the Programs list.
If you are prompted for an administrator password or for confirmation, type your password, or click Continue.
2. Locate and then click the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\
In this registry path, click the (GUID) subkey that corresponds to the network adapter that is connected to the network.
3. On the Edit menu, point to New, and then click DWORD (32-bit) Value.
4. In the New Value #1 box, type DhcpConnEnableBcastFlagTog
5. Right-click DhcpConnEnableBcastFlagTog
6. In the Value data box, type 1, and then click OK.
7. Close Registry Editor.
I used PC Fixer (a free utility!) from www.digitalsupporttech.com
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by: YGregersenPosted on 2008-01-16 at 10:25:22ID: 20674547
Be sure to shut off IPv6 in the network adapters properties for starters.
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Also this sounds very similar.
Windows Vista cannot obtain an IP address from certain routers or from certain non-Microsoft DHCP servers
http://support.microsoft.c