NEW (BEGINNER) NETWORK USERS: IP ADDRESS CONFLICT. An internet service provider (ISP) technician has come to your home and installed network software onto your computer. However, you may encounter this error message when trying to connect to your new network: (Windows System Error: There is an IP address conflict with another system on the network when trying to connect) OR (This IP address is already in use on the network, please configure a different IP address).
The first thing that I do is to make sure that the network setting (Connect automatically when this network is in range) is unchecked. Go to Start>Control panel>Network and Internet>Network and Sharing Center>Manage Wireless Network>click on your network>right-click and select Properties>uncheck the box if it's not already unchecked by default. If you were using an unsecured network such as Fred-eZone prior to your secured network, you probably had this (automatically connect to) box checked to connect to Fred-eZone or to the next available unsecured network if Fred-eZone was not available.
The second thing that I do is to disable all the networks that you're NOT using. Go to Start>Control Panel>Network and Internet>Network and Sharing Center>Mange Network Connections>click on the (or each) network that you're NOT using>right-click and select Disable.
There are other steps to resolving this IP address conflict error, however, performing the two steps above often resolves the issue for me. It is very important to get this IP conflict resolved asap in order to be able to connect to your network to SECURE it so that others can't use it.
NOTE: You can also contact me with any of your computer related questions via my cnet.com profile at this link: www.cnet.com/profile/pamjparr/, then just click on: E-mail Pamela j.