How to Release & Renew an IP
IP stands for Internet Protocol. This is the communication method that computers use to talk to one another over the Internet and most local networks. Your IP address is a unique number assigned to your computer that allows you to be identified and located on the network. Similar to a postal address, the IP address is the destination where your data is delivered to by routers and switches. You can release your IP address and then renew it on the network by using built-in Windows commands.
Click "Start" and type "Command Prompt" without quotes.
Right-click the "Command Prompt" item and click "Run as administrator."
Type "ipconfig /release" to release your IP address. Do not type the quotes. Press "Enter."
Type "ipconfig /renew" to renew your IP address. Again, do not use the quotes. Press "Enter."