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Can't get ip address - please help before I throw the laptop out!! :-(


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plastics's Avatar
plastics plastics is offline
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25-Apr-2009, 07:07 AM #1
Can't get ip address - please help before I throw the laptop out!! :-(
System:
Dell 1.66Ghz 1GB Ram laptop
Intel PRO/Wireless 3945ABG Network Connection
Windows XP SP2


I have a wireless connection at home with a number of laptops connected, have all been working fine for a year or so. One of the laptops has stopped connecting to the internet and I have searched high and low for a solution.

The adapter (Intel PRO Set Wireless) has an icon saying I am connected to my provider at 54mbps with an 'excellent' signal quality but the ip address is set at 169.254.195.180. Another icon in the tray starts stating 'acquiring network address' for a long time and then fails stating 'limited or no connectivity'.

Using the various troubleshooters, I have received a message stating 'the wireless adapter failed to get a valid ip address. This can be due to authentication failure, incorrect wireless security passwords or because of a DHCP server malfunction'. I have re-entered the correct passwords to no avail, and the other 2 laptops are working and connecting fine to the same provider.

I have also tried the cmd prompt and the usual ipconfig release and renew but it simply states:

>ipconfig /release

Windows IP Configuration

No operation can be performed on Local Area Connection while it has its media di
sconnected.

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected

Ethernet adapter Wireless Network Connection:

Connection-specific DNS Suffix . :
IP Address. . . . . . . . . . . . : 0.0.0.0
Subnet Mask . . . . . . . . . . . : 0.0.0.0
Default Gateway . . . . . . . . . :

>ipconfig /renew

Windows IP Configuration

No operation can be performed on Local Area Connection while it has its media di
sconnected.
An error occurred while renewing interface Wireless Network Connection : unable
to contact your DHCP server. Request has timed out.

I have also tried the WinsockFix and IspFIx programmes available on the internet for download. Again no success!

On my Sony vaio laptop, which is working fine, I get the following details:

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . :
IPv4 Address. . . . . . . . . . . : 192.168.0.4
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.0.1



Anybody have any words of wisdom before I throw the laptop out of the window!
JohnWill's Avatar
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Retired Moderator with 106,412 posts.
 
Join Date: Oct 2002
Location: South Eastern PA, USA
25-Apr-2009, 03:55 PM #2
TCP/IP stack repair options for use with Windows XP with SP2/SP3.

Start, Run, CMD to open a command prompt:

In the command prompt window that opens, type type the following commands:

Note: Type only the text in bold for the following commands.

Reset TCP/IP stack to installation defaults, type: netsh int ip reset reset.log

Reset WINSOCK entries to installation defaults, type: netsh winsock reset catalog

Reboot the machine.
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plastics's Avatar
plastics plastics is offline
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Join Date: Apr 2009
Experience: Beginner
26-Apr-2009, 09:53 AM #3
thanks for your help!
working fine now!
JohnWill's Avatar
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Retired Moderator with 106,412 posts.
 
Join Date: Oct 2002
Location: South Eastern PA, USA
26-Apr-2009, 07:52 PM #4
I guess the toss out the window has been aborted?



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