How to change ip address quick and easy on windows vista/windows 7000 and my router is model:3800HGV-B /at&?

i want to know how i can change my ip address real quick and easy, im using a windows vista/windows 7000 and my router is ... router model:3800HGV-B from at %26amp; tHow to change ip address quick and easy on windows vista/windows 7000 and my router is model:3800HGV-B /at%26amp;?
if you are using the modem only, from your internet service provider(ISP) you cant. the ip addy from the ISP is either set in stone or they will refresh your ip addy automaticly depending on the ISP. i have comcast and its set in stone. now if you have a router hooked up to the modem given to you by the ISP it is still the same. the ip addy that you are resetting if you follow cha_o_mac2001 answer will only work for the ip addy given to you from the router. the router gets its ip addy from the modem wich gets it from the ISP. all the router dose is takes that one ip addy from you ISP that your paying for and turns it into 100 ip addys so you can hook up all your computers at home to the internet without paying for more ip addys from your IPS.How to change ip address quick and easy on windows vista/windows 7000 and my router is model:3800HGV-B /at%26amp;?
You simply cannot. Your IP address is assigned by your ISP. You have no direct control over it.
Click the Start menu button on the Windows taskbar.



Click Run... on this menu.



If the computer is holding a current IP address, type 'cmd' (without the quotes) in the text box that appears. A command prompt window appears on the screen.



Type 'ipconfig' (without the quotes) to view the status of the computer's IP address(es).



If the computer is holding a current IP address, type 'ipconfig /release' to let go of the address.



Type 'ipconfig /renew' to obtain a new IP address (whether or not the computer is holding a current address).
1) Go to www.whatismyip.com and write down your IP on a piece of paper.

2) Unplug Your modem (EVEN the ADSL line should be off).

3) In MS Dos type: ipconfig/all

4) Now in MS Dos type: ipconfig/release

5) Now put your modem together.

6) When you modem is connected it won't be connected to the internet.

7) Now in MS Dos type: ipconfig/renew

8) You should now be connected to the internet, with a new IP.

9) Check your IP from www.whatismyip.com, and your IP should now be changed (That's why I told you to write your IP down in step 1, so you can check.)