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Vista & DHCP

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  #1 (permalink)  
Old 10-09-2009
compucure
 

Posts: n/a
Vista & DHCP

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
------------------------------------------------------------------------
compucure's Profile: http://forums.techarena.in/members/114874.htm
View this thread: http://forums.techarena.in/windows-v...rk/1256603.htm

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  #2 (permalink)  
Old 10-09-2009
Bob Lin \(MS-MVP\)
 

Posts: n/a
Re: Vista & DHCP
You get 169.254.x.x IP meaning the laptop doesn't get Ip from the DHCP. Have
you checked any last driver for the NIC? Or do you have 3rd party security
software running on the laptop? This post may help.

Vista has 169.254.xx IP -
http://www.chicagotech.net/netforums...php?f=1&t=3777

--
Bob Lin, Microsoft-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on
http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on
http://www.HowToNetworking.com


"compucure" <compucure.3zsgnb@DoNotSpam.com> wrote in message
news:compucure.3zsgnb@DoNotSpam.com...
>
> 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
> ------------------------------------------------------------------------
> compucure's Profile: http://forums.techarena.in/members/114874.htm
> View this thread:
> http://forums.techarena.in/windows-v...rk/1256603.htm
>
> http://forums.techarena.in
>


Reply With Quote
  #3 (permalink)  
Old 10-10-2009
Tae Song
 

Posts: n/a
Re: Vista & DHCP

"compucure" <compucure.3zsgnb@DoNotSpam.com> wrote in message
news:compucure.3zsgnb@DoNotSpam.com...
>
> 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
> ------------------------------------------------------------------------
> compucure's Profile: http://forums.techarena.in/members/114874.htm
> View this thread:
> http://forums.techarena.in/windows-v...rk/1256603.htm
>
> http://forums.techarena.in
>


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


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