Vista - DHCP Client service does not start because of dependency failure

My user's Dell M1330 laptop recently bought is not able to get connected to
networks both with the NIC and the Wireless card. We know the router is not
the problem because other Desktop (wired connection) and Laptop (wireless)
can connect to the router just fine.

The problem is basically because the laptop NIC is not getting an IP address
assigned by DHCP server, and further investigating revealed that the DHCP
Client service is not started (although it was set to automatically start).
We couldn't manually start the service and got an 1608 error saying
dependency group failed (without telling us which one failed). Looking in the
dependency tab of the DHCP Client shows these are components the service
depends on:

Ancillary Function Driver for Winsock
NetIO Legacy TDI Support Driver > TCP/IP Protocal Driver
Network Store Interface Service> NSI proxy service

We checked and know the NSI proxy service is running fine. We can ping
127.0.01 and I think that means the TCP/IP Protocal Driver is working fine.
So that leaves the AFD driver in question.

So how can we find out if the AFD driver has been loaded correctly? Thanks
for any help or pointer!

Best,
Lanny

I finally figured it out.
To test is AFD is loaded correctly, first start CMD as an administrator, and
then type
net start AFD

As I suspected, the AFD driver couldn't be loaded. And I had to use
sfc /scannow
to repair the corrupted driver file. Once it's repaired, I started DHCP
Client service just fine and I was able to get DHCP assigned IPs with no
problem.

Hope this will help someone else who experience the same problem.

Best,
Lanny

"Lanny Lin" wrote:

Hi, I'm having this problem- and when I tried what you said - it came back with 'Acess is denied'' How can I have access denied?!

You have to run CMD as an administrator.

To do that, you type in CMD after you click the START button. Then right
click on Command Prompt from the list and select Run as Administrator.

"dack8472" wrote:

I did the same fix and the sfc scan came back that no errors were detected...
Now what can I do????