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Renew IP Address 1

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Momozone

IS-IT--Management
Joined
Dec 2, 2004
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103
Location
IE
I have a a problem recieving an ip address automatically.

I have a router with dhcp enabled (It assigns ip addresses for other machines just not this one)

When I connect the ethernet cable to this machine it recognises the connection but will not recieve an ip address (hence I cant use the internet) however when i manually configure the ip address and default gateway I can use the internet.

I have reset Winsock but still no joy.... Can anyone help???

MoMoZoNe
 
How many PC's are we talking about, in the network...

if it is viable, why not set all to a fixed IP adress and circumvent all probs?



Ben

If it works don't fix it! If it doesn't use a sledgehammer...
 
Sival.... That program just rubuild the winsock entries into the registry and reinstalls the tcp/ip protocal. I have ddont this manually and still no joy.

BadBigBen - I need the pc to obtain the IP automatically... Its a students PC that travels between networks not administered by themselves and they would need to be getting an IP address/Subnet/Gateway for each network they move to.

Thanks anyway.

MoMoZoNe
 
Is the router configured to only distribute IP addresses to certain machines (eg via MAC addresses)?

If the PC can obtain DHCP configuration information from another DHCP server, the above is almost certainly the problem.

John
 
No router is configured to use dhcp... no sspecific mac addresses. The router is not the problem. The problem is the PC or NIC card are there any tests I can do to determine if the NIC card needs to be changed or if there is some configuration locally that is causing this problem.

I have:
Reset winsock
Reinstalled the Drivers
Reinstalled TCP/IP
Removed any spyware/virus'
Uninstalled Norton Internet Security (I read somewhere that it can cause problems)




MoMoZoNe
 
Replace the NIC with a spare? Set it up with TCP/IP for DHCP configuration and see if it works.

John
 
The obvious..............

However, its a laptop with onboard ethernet! I really want to be sure before going and buying a new NIC card.


MoMoZoNe
 
What happens if you run ipconfig /renew from the command line?

John
 
Can the student receive DHCP addresses elsewhere?

I have seen cases where a PC will retain the old DHCP settings, thinking it's connected to the same network as before, especially if the other one issues a long lease.

If ipconfig /renew doesn't work, try
ipconfig /release (to drop the old config info)
ipconfig /all (to make sure it's gone)
ipconfig /renew (to get a new config)

Good Luck!

Seumas
 
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