How to Fix the Window System IP Address Conflict Problem

IP Addresses
There are two methods of computer IP addressing. The first is static IP addressing, which is manually configured in the computer. The second is dynamic IP addressing, wherein the IP address is leased from a Dynamic Host Configuration Protocol (DHCP) server. To check which one the computer uses, open the properties of the active network connection. If it is set to manually assign an IP address, that means it is static. If it is set to obtain an IP address automatically, that means it is dynamic.
Static IP Address Conflict
A static IP address conflict means that you have manually configured the computer's IP address to the same IP address as another computer in the network. To correct this, it is better to ask a system administrator for available IP addresses so that you won't have a conflict with any other computer and so you can 'own' that IP address.
Dynamic IP Address Conflict
A dynamic IP address conflict happens when the DHCP server assigns the same IP address to two computers. This happens because when a computer requests an IP address and the DHCP server doesn't check the network, but only checks the available IP addresses that it can lease. When another computer goes offline, the DHCP server makes that computer's IP address available for lease. However, if that computer goes online again it may think it still owns the IP address, resulting to a possible conflict.
Resolving Dynamic Conflict
To resolve the dynamic conflict and get a different IP address, open the command prompt. Type the command 'ipconfig /release' (without the quotes) and press 'Enter.' This releases its old IP address. After that, type the command 'ipconfig /renew' (without the quotes) and press 'Enter.' This requests a new IP address from the DHCP server.