DHCP server help, any one help?

Question

any ideas why my pc cant contact dhcp server?
if i plug the modem and cable into my laptop it works fine!

Answer 1

Are you talking about a LAN connection, or a cable modem? Your cable modem will be the DHCP server (it'll assigned you a private IP). Are you using a USB connection to the modem, or an RJ-45 (looks like a big phone cable).



Here, do this:

Click 'Start' -> 'Run'

Type 'cmd' in the box and click 'OK'



This will open up a command prompt window.

Type 'ipconfig /release' and hit 'Enter'

Wait for it to do it's thing.

Type 'ipconfig /renew' and hit 'Enter'



If it gives you another error, double check to make sure your computer is plugged into the network properly. I don't recommend using USB to connect to a cable modem, it's much slower than using your LAN connection.



If nothing else works, reboot your PC. 'When in doubt, reboot!'

Answer 2

It could be in be in the protocol set in internet explorer. to check it:



Control panel >network connex> right mouse button on your internet connection (shwon by the network card its connected to) Properties > General tab > Select Internet Protocol > Properties



in here make sure all options are set to Obtain automatically, and also the same under "alternate configuration"



if that doesnt work, then reboot your modem when you connect your PC to your Modem. sometimes it will request an IP address on the set up you have



Alternatively possibly a faulty NIC...



*** Update ***



Ive just read your other question, which, i assume is the same issue.. it soubnds like the TCP/IP stack is faulty. a sneaky peek on the MS support site shows you how:



In Windows XP, a reset command is available in the IP context of the NetShell utility. Follow these steps to use the reset command to reset TCP/IP manually:

To open a command prompt, click Start and then click Run. Copy and paste (or type) the following command in the Open box and then press ENTER:

cmd

At the command prompt, copy and paste (or type) the following command and then press ENTER:

ipconfig /flushdns (press ENTER)

netsh int ip reset c:\resetlog.txt

Note If you do not want to specify a directory path for the log file, use the following command:

netsh int ip reset resetlog.txt

When you run the reset command, it rewrites two registry keys that are used by TCP/IP. This has the same result as removing and reinstalling the protocol.

Answer 3

Does your network use encryption? Does your laptop know the encryption method (WEP, WPA) and key(s)?



I'd guess that to be the best probability for the problem. Direct cabled machines don't need or use encryption.



Hope that helps.

Answer 4

you got tv