Re: Vista & DHCP

"compucure" <> wrote in message
news:...
>
> I have three laptops all connected wirelessly. Two of these work
> perfectly and the ipconfig throws up the exact right info:
>
> LAPTOP1
>
> Wireless LAN adapter Wireless Network Connection:
>
> Connection-specific DNS Suffix . : home
> Description . . . . . . . . . . . : Intel(R) WiFi Link 5100 AGN
> Physical Address. . . . . . . . . : 00-21-5D-B7-B1-0A
> DHCP Enabled. . . . . . . . . . . : Yes
> Autoconfiguration Enabled . . . . : Yes
> Link-local IPv6 Address . . . . . :
> fe80::a01a:3e0e:151c:2b21%10(Preferred)
> IPv4 Address. . . . . . . . . . . : 192.168.1.76(Preferred)
> Subnet Mask . . . . . . . . . . . : 255.255.255.0
> Lease Obtained. . . . . . . . . . : 08 October 2009 09:09:28
> Lease Expires . . . . . . . . . . : 09 October 2009 09:09:27
> Default Gateway . . . . . . . . . : 192.168.1.254
> DHCP Server . . . . . . . . . . . : 192.168.1.254
> DHCPv6 IAID . . . . . . . . . . . : 218112349
> DHCPv6 Client DUID. . . . . . . . :
> 00-01-00-01-11-63-F1-38-00-1D-BA-87-4D-EE
>
> The above settings also apply to LAPTOP 2.
>
> Now when I run ipconfig on LAPTOP3 I get a completely different
> configuration: I have also connected this as wired to see if it made any
> difference.
>
> LAPTOP3
>
>
> Windows IP Configuration
>
>
> Wireless LAN adapter Wireless Network Connection:
>
> Connection-specific DNS Suffix . :
> Autoconfiguration IPv4 Address. . : 169.254.161.142
> Subnet Mask . . . . . . . . . . . : 255.255.0.0
> Default Gateway . . . . . . . . . :
>
> Ethernet adapter Local Area Connection:
>
> Connection-specific DNS Suffix . :
> Autoconfiguration IPv4 Address. . : 169.254.196.63
> Subnet Mask . . . . . . . . . . . : 255.255.0.0
> Default Gateway . . . . . . . . . :
>
> Tunnel adapter Local Area Connection* 6:
>
> Media State . . . . . . . . . . . : Media disconnected
> Connection-specific DNS Suffix . :
>
> Tunnel adapter Local Area Connection* 10:
>
> Media State . . . . . . . . . . . : Media disconnected
> Connection-specific DNS Suffix . :
>
> Tunnel adapter Local Area Connection* 13:
>
> Media State . . . . . . . . . . . : Media disconnected
> Connection-specific DNS Suffix . :
>
> C:\Windows>
>
> DNS Servers . . . . . . . . . . . : 192.168.1.254
> NetBIOS over Tcpip. . . . . . . . : Enabled
>
> Strange thing is that it is showing up as "connected" to both LAN &
> wireless, but indicates, obviously, that I can only get "Local Access".
>
> Any help greatly appreciated
>
> My network connectivity in vista keeps defaulting back to public &
> fails to obtain an ip address both wired and wireless
>
>
> --
> compucure
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Windows defaults to 169.254.x.x when it can't obtain an IP address
automatically through DHCP.

You didn't say which OS you were running on the first two laptops.

Windows Vista cannot obtain an IP address from certain routers or from
certain non-Microsoft DHCP servers
http://support.microsoft.com/kb/928233

This problem affects Vista and XP with SP2 and maybe SP3