So I've tried googling this but haven't found anything exactly like my problem...

I have a router connected directly to our road runner modem and there are two laptops running on the wireless. I get windows error messages all the time saying there is an IP address conflict with another computer on the system.

Is this because of the two laptops or is someone else using our internet connection? Solutions to either (other than encrypting our router, I know, I know I'll get around to it here soon) would be nice

Thanks!

12/5/2006 12:46:22 AM

whats the exact error message?

12/5/2006 12:49:34 AM

I *think* this is what it says:
Windows system error: There is an IP address conflict with another system on the network

[Edited on December 5, 2006 at 12:59 AM. Reason : .]

12/5/2006 12:55:50 AM

make sure youve done this:

http://uits.iu.edu/scripts/ose.cgi?aiyy.def.help

12/5/2006 1:05:20 AM

^ done, and re-done

12/5/2006 1:11:34 AM

If you don't want to encrypt, you could set the sytem up to let your two laptops use static IP's. I gave my server a static IP so I wouldn't have to realign everything when the power went out, its worked pretty well.

12/5/2006 1:28:39 AM

^ What I was going to suggest.

12/5/2006 1:35:50 AM

Check the settings on the router to make sure it is allowed to give out more than 1 IP Address. It is possible a router can hand out same IP to two or more computers. Weird, stupid, but possible.

12/5/2006 3:35:57 AM

I bet one of your laptops isn't re-requesting it's ip like it should.

Turn both laptops off. Unplug router for 30 seconds then plug it back in.

Turn one laptop on. Once windows loads go to..

Start --> Run --> cmd

A dos window will open type the following commands

Command 1
ipconfig /release

Command 2
ipconfig /renew

This is forcing windows to release your network ip and obtain it again. Leave that laptop ON.

Repeat this on the second laptop. If the error happens again it is NOT your computers, it's a faulty router or bad settings on the router.

Go to the manufacturer web page, see how to reset it to default settings and see if that fixes it. If that does, it just meant your settings were wack. Otherwise go buy a new router.

[Edited on December 5, 2006 at 8:30 AM. Reason : clarrifying]

12/5/2006 8:29:04 AM

Quote :

"This is forcing windows to release your network ip and obtain it again. "

so does resetting the computer which you just told her to do.

12/5/2006 9:03:59 AM

also a computer is going to request the last ip it was assigned when you restart or ipconfig /renew. if it's available, it will get it. if not, it'll get a new one.

make sure both laptops are set up for DHCP, and not assigned their own static ips.
To do this:
Open network connections. (start -> control panel -> network connections)
Right click on the network in question, click properties.
In the general tab, click "Internet Protocol (TCP/IP)", then click the properties button
Make sure the buttons beside "Obtain ip address automatically" and "obtain dns server address automatically" are checked.
Click ok a bunch to get out of all that stuff, restart your computer (you don't have to restart, but its the easiest way)

12/5/2006 11:21:53 AM

I had a similar problem... I was on the same wireless channel as my neighbor

12/5/2006 11:58:35 AM