IP address conflict message on PC with Vista...?

Question

I have searched this issue on here and have not found anything to help. I left my computer on last night & came out this morning to find this message on the screen:

"Windows has detected an IP address conflict
Another computer on this network has the same IP address as this computer. Contact your network administrator for help resolving this issue. More details are available in the Windows System event log."

I have absolutely no idea what this means & am curious as to whether there can be any security threat involved. I only have the one pc connected, no other devices. I have wireless internet and am running Vista. Also, my Yahoo messenger keeps signing in and out- don't know if that means anything.

I did attempt msconfig- ipconfig/release, ipconfig/renew and get the message- "requested operation requires elevation"

Is this something that could be a problem on the part of our internet provider? Should I get our tech out today? And is it safe to continue using this computer before something is done?

Thanks in advance!

Answer 1

An IP address is a unique number that identifies each computer on the network.

Example 216.27.61.137

Computer reads it like:

The number that you see is is decimal form (form we can read)

The computer reads this number in binary (machine code)

So 11011000.00011011.00111101.10001001



This is for dynamically assigned IP address'. Static IP address' need to be configured manually.

Sometimes when on a network with multiple users, an IP may already be in use.

"Update IP", "IP is use"

The IP is being used and it needs to be refreshed. IP addresses are dynamic meaning they can change. Go to Start, Run, type in "cmd".

Type in "ipconfig/release"

++This flushes the IP address

Type in "ipconfig/renew"

++This makes a new usable IP address



This will create a new IP



Or turn off your internet connection and reconnect. It should automatically create a new IP for you (one that is not in use).

Every time you connect to a network it will automatically obtain a new IP for you.



Regards,



Dane

Answer 2

To use ipconfig /release or ipconfig /renew, you need to right click on Command Prompt and select the second option "Run as administrator", then you have the elevation that you require.



You do have more than one computer/device using the router and the other person has the same IP address as you are using.



You need to tighten up the security on your router, especially on the wireless. Create a MAC address allow list and only put your computer's wireless MAC address in the list. If you issue the command ipconfig /all, look under the section "Wireless LAN adapter Wireless Network Connection", and find the Physical Address, that is your MAC address for your Wireless Ethernet adapter.



I also recommend that you do not broadcast your SSID, change the default settings (like channel on the router), create a WAP passkey and do not allow remote setup on the router.



If you go to the DHCP client Table to see if there is more than one computer on your network. The last thing to check is to make sure that if the MAC address clone feature is used that the MAC address is the MAC address of the Wireless Ethernet adapter in your computer. If a computer's MAC address is used as a clone then it does not appear in the Client Table.

Answer 3

It means that 2 devices on your network have the same IP address assigned. Usually, on home networks, you set all computers to DHCP (automatically obtain IP address) to avoid this problem. Are you using a wireless network? If so, change the WEP/WPA key, to rule out anyone else using your connection. Or maybe you (or someone else) connected their iPhone or similar wifi-enabled device to your wireless network.

As for the ipconfig problem, you must run the DOS-Windos with administrative privileges (i.e. 'Run as... administrator').

It's definitely not a problem with your ISP.

Answer 4

Who else uses your network?



They have the same IP address which ......nullifies one of them



does your network IP change each time you login?



You need to change one of them to something different or clear them both and re log in one at a time.



go into network properties TCP/IP settings advanced...Most networks IP's are assigned and should be checked to obtain one automatically....if there is one already input there, delete the numbers and reboot...

Answer 5

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Answer 6

each computer on a network needs to have a unique IP address in order to have information recieved correctly to your computer. Try setting up a static local IP to something.



http://portforward.com/networking/static-vista.htm