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How to change IP Address on the Network

By Caroline.Ironside ·
We had engineers in from a company installing new computers. However when i try to access the internet or email on this machine is says that "The system has detected an IP Address conflict with another system on the network".

How do i rectify this?

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Change your IP address

by Prefbid II In reply to How to change IP Address ...

I'm surprised your system is staying up. The best thing to do is change your IP address. How to do that depends on what machine type and OS you are using and whether you have assigned IP addresses or use DHCP.

However, if you have to ask the question, you may want to consider getting some help from someone who knows what they are doing.

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Change your IP address

by Prefbid II In reply to How to change IP Address ...

I'm surprised your system is staying up. The best thing to do is change your IP address. How to do that depends on what machine type and OS you are using and whether you have assigned IP addresses or use DHCP.

However, if you have to ask the question, you may want to consider getting some help from someone who knows what they are doing.

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by mrafrohead In reply to Change your IP address

What is your OS??? And how many computers are there on your network???

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What's with all the ???

by Kevin Houston In reply to

Patience...this is a valid question for an inexperienced administrator or PC Tech.

Sometimes, especially with Win98, and DHCP assigned addresses within NT4, Novel, Banyan and other "older" network OS's, a machine doesn't release it's IP address. (I haven't seen this yet in a native Win2K network...has anyone else?) Simply put, this is usually caused by a PC not being turned on for a while, and DHCP aging out the IP address and allowing it to go to another PC on the network. When the PC that's been off for a while is booted again, it tries to use the same address it had before instead of asking DHCP for a new one.

If this sounds like your problem, the fix is to identify the two machines having the conflict and force them to bothrelease and renew their IP's. Usually you have to shut both of them down and update them one at a time.

To force them to renew their IP's go to a command prompt and type:
ipconfig /release_all
if it is a Win98 PC (I'm betting it is...) or:
ipconfig /release
if it is WinNT or Win2K. Then type:
ipconfig /renew
to renew the IP address. Do this on both of the affected PC's and the problem should fix itself.

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Along that note win98 and ipconfig

by LordInfidel In reply to What's with all the ???

Just in case you open a command prompt on a win98 machine and you don't have ipconfig. Don't despair.

Some installations of 98 don't have that utility. Instead those clients will need to use the gui version, winipcfg (located in %systemroot%
-c:\win9

Just in case you don't know how to open a command prompt, go to start/run
for 98 type command press enter
for nt type cmd press enter

ipconfig on NT systems may not work for an average user, depending on their permissions.
(unloading and loading devices drivers, i know it's odd)

NT and 2K do fair better because they have a well written tcp/ip stack.

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