Cannot get ip address through DHCP

31 Oct 2006 4:51 PM

charlieb1979

PLEASE HELP:
I can not get an ip address through DHCP, I have tried everything.

I have a laptop with an onboard network card and a home user lan with 3
other users who are having no problems (I am an IT technician and setup the
lan myself). I have reinstalled windows XP and my network card. I have ran
updates and checked for viruses and spyware and checked and changed my
firewall and security settings. As a desperate last measure I even went
through and added all extra services of TCP/IP. I have even tried installing
another network card through my PCMCIA slot (both cable and wifi). They all
work if I statically IP them but not if I want to obtain automatically. DHCP
is enabled on my laptop and I have added a gateway service. I can not think
of any other possibilities that could be preventing this from working.....

Any ideas greatly appreciated....

Thank you

31 Oct 2006 5:07 PM

FedUp

On Tue, 31 Oct 2006 08:51:02 -0800, charlieb1979 wrote:

Show quoteHide quote

> PLEASE HELP:
> I can not get an ip address through DHCP, I have tried everything.
>
> I have a laptop with an onboard network card and a home user lan with 3
> other users who are having no problems (I am an IT technician and setup the
> lan myself). I have reinstalled windows XP and my network card. I have ran
> updates and checked for viruses and spyware and checked and changed my
> firewall and security settings. As a desperate last measure I even went
> through and added all extra services of TCP/IP. I have even tried installing
> another network card through my PCMCIA slot (both cable and wifi). They all
> work if I statically IP them but not if I want to obtain automatically. DHCP
> is enabled on my laptop and I have added a gateway service. I can not think
> of any other possibilities that could be preventing this from working.....
>
> Any ideas greatly appreciated....
>
> Thank you

Assuming you have a NAT router and are trying to connect through it:
Your DHCP server/router has a limited scope and has assigned all available
addresses.
Your DHCP server/router has mac filtering enabled and your mac is not on
the allowed list.
What do you mean you added a gateway service?

31 Oct 2006 6:29 PM

Steve Winograd [MVP]

In article <115897BC-186A-457E-BDE8-D3F311811***@microsoft.com>,
charlieb1979 <charlieb1***@discussions.microsoft.com> wrote:
Show quoteHide quote

>PLEASE HELP:
>I can not get an ip address through DHCP, I have tried everything.
>
>I have a laptop with an onboard network card and a home user lan with 3
>other users who are having no problems (I am an IT technician and setup the
>lan myself). I have reinstalled windows XP and my network card. I have ran
>updates and checked for viruses and spyware and checked and changed my
>firewall and security settings. As a desperate last measure I even went
>through and added all extra services of TCP/IP. I have even tried installing
>another network card through my PCMCIA slot (both cable and wifi). They all
>work if I statically IP them but not if I want to obtain automatically. DHCP
>is enabled on my laptop and I have added a gateway service. I can not think
>of any other possibilities that could be preventing this from working.....
>
>Any ideas greatly appreciated....
>
>Thank you

Make sure that the DHCP Client service is running. Check the System
log in Event Viewer for relevant messages. Use this command to reset
TCP/IP, then reboot:

netsh winsock reset catalog

--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

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