This article will show you how to change your computer's public IP address by turning off your router. To change the private IP address that is assigned to a computer on the local network, you need to open Command Prompt (in Windows) or Network Preferences (in Mac OS X).
Steps
Method 1 of 3: How to change your public IP address
Step 1. Determine the current IP address of the device
To verify that the IP address has changed, you need to know the current IP address of the device.
Step 2. Turn off the device
Turn off the computer, phone, or tablet whose IP address you want to change.
Step 3. Disconnect your modem and router from the Internet and power supplies
This will reset your wireless settings.
If the modem and router are housed in the same enclosure, simply unplug that device
Step 4. Wait five minutes
This should be enough time for your ISP to assign you a new public IP address.
Step 5. Turn on the modem
Wait for the LEDs on the front panel of the modem to flash or light up.
Step 6. Turn on the router
After a couple of minutes, the router LEDs will start blinking and then light up.
Step 7. Turn on the device
Most likely, it will automatically connect to the Internet, but in some cases, you need to manually select a network and connect to it.
Step 8. Open your web browser
With it, you will find out the new IP address.
Step 9. Enter "my IP address" (without quotes) in your browser
If the new IP address is different from the previous one, the IP address has been changed.
If the new IP address is the same as the previous one, turn off the router for a longer period of time. Try turning it off all night and then turning it back on in the morning
Method 2 of 3: How to Change Private IP Address in Windows
Step 1. Open the Start Menu
To do this, click on the Windows logo in the lower left corner of the screen or press the ⊞ Win key.
In Windows 8, move your mouse to the upper-right corner of the screen, and then click the magnifying glass icon
Step 2. In the search bar, enter "command line" (without quotes)
A list of search results will be displayed.
Step 3. Right click on the command line icon
It looks like a black square. A menu will open.
Step 4. Click Run as administrator
It's near the bottom of the drop-down menu.
Step 5. Click Yes when prompted
This will confirm that you want to open a command prompt.
Step 6. Type ipconfig and press ↵ Enter
The information about the IP settings will be displayed.
Step 7. Find your current IP address
It is listed in the "IPv4 address" line and corresponds to the device connected to the local network.
Step 8. Type ipconfig / release and press ↵ Enter
The current IP address will be deleted.
Step 9. Type ipconfig / renew and press ↵ Enter
The device will be assigned a new IP address.
Step 10. Determine the new IP address
It is listed in the "IPv4 Address" line. If the new IP address is different from the previous one, the IP address has been changed.
The described method can be applied only when the computer is connected to a local Ethernet network. You cannot change the public IP address using this method
Method 3 of 3: How to Change Private IP Address in Mac OS X
Step 1. Open the Apple menu
It's an apple-shaped icon in the upper-left corner of the screen.
Step 2. Click System Preferences
You will find this option in the Apple dropdown menu.
Step 3. Click Network
The "Network" window will open.
Step 4. Highlight the current connection
Do this in the left pane of the "Network" window.
Step 5. Click on Advanced
It's in the lower-right corner of the window.
Step 6. Click the TCP / IP tab
This tab is at the top of the Advanced window.
Step 7. Find the number in the "IPv4 Address" line
This number is the current IP address of the computer.
Step 8. Click Renew DHCP
This option is to the right of the IP address. This will update the device's current IP address.
Step 9. Determine the new IP address
It is listed in the "IPv4 Address" line. If the new IP address is different from the previous one, the IP address has been changed.