What changing your IP address means and why you might want to do it

Your IP address is a number that identifies your device on the internet — like a mailing address for data. Every time you connect to the internet, your internet service provider (ISP) assigns you one. Changing it means getting a different number so websites and services see you as coming from a different location or device.

People change their IP address for several reasons: to troubleshoot connection problems, to reset a device that is behaving oddly, to change their apparent location (which affects which version of websites they see), or to stop a service from blocking their old address. The method you use depends on what you are trying to fix and what kind of internet connection you have.

Key Takeaways

  • Restarting your modem and router is the simplest way to get a new IP address from your ISP, and it works for most home internet connections.
  • Your ISP controls your public IP address — the one websites see — so you cannot change it directly; you can only ask your ISP to assign you a new one.
  • If you need to hide your IP address or appear to be in a different location, a VPN (virtual private network) masks your address but does not change what your ISP assigns you.
  • Unplugging your modem for 10 to 30 seconds usually works better than a soft restart because it clears the connection completely.
  • Some ISPs assign the same address back to you after a restart, especially if you reconnect quickly; waiting a few minutes increases the chance of getting a different one.

Restarting your modem to get a new IP address from your ISP

The most common way to change your public IP address is to restart your modem — the device that connects your home to your ISP's network. When you restart it, your ISP assigns you a new address from its pool of available numbers.

Unplug the power cable from the back of your modem and wait 10 to 30 seconds. This is more effective than pressing a restart button because it fully clears the device's memory. Plug it back in and wait for the lights to stabilize — usually two to five minutes. Your modem will reconnect to your ISP and receive a new IP address. You can check what it is by searching "what is my IP" in any web browser.

If your modem and router are separate devices, restart the modem first, then restart the router the same way. If they are combined into one unit, restarting that one device handles both. Wait for all lights to return to normal before testing your connection.

Why your ISP might assign you the same address again

ISPs use a system called DHCP (Dynamic Host Configuration Protocol) to hand out IP addresses. When your modem reconnects, the ISP's system may assign you the same address you had before, especially if you reconnect within a few minutes. This is not a failure — it is how the system is designed to work.

To increase the chance of getting a different address, wait at least 10 to 15 minutes after unplugging your modem before plugging it back in. Some ISPs hold onto an address for a set period (often 24 hours) before making it available to other customers. If you restart and get the same address, waiting longer and trying again usually works.

If you need a different address urgently and restarting does not work, you can contact your ISP directly and ask them to release your current address and assign you a new one. Some ISPs will do this; others will not. There is no rule that requires them to.

Using a VPN if you want to hide or change your apparent location

A VPN (virtual private network) is different from changing your IP address with your ISP. A VPN does not change the address your ISP assigns you — it masks it. When you use a VPN, websites see the VPN service's address instead of yours, and they see you as being in whatever country or city the VPN server is located in.

VPN services are third-party software you install on your device or configure on your router. You pay a monthly or yearly fee (usually $5 to $15 per month). When you connect to a VPN, all your internet traffic goes through the VPN's servers before reaching the websites you visit. This hides your real IP address and location from those websites.

A VPN is useful if you want to watch content that is only available in another country, or if you want to prevent websites from tracking your location. It is not the same as changing your IP address with your ISP, and it does not change what address your ISP sees you using.

Changing your IP address on a specific device or network

If you want to change the local IP address of a device on your home network (the address it uses to talk to your router, not the one the internet sees), you can do that through your device's settings. This is different from changing your public IP address.

On Windows, go to Settings > Network & Internet > WiFi (or Ethernet) > Change Adapter Options > right-click your connection > Properties > Internet Protocol Version 4 > Properties. You can set a static IP address there instead of letting your router assign one automatically. On Mac, go to System Preferences > Network > Advanced > TCP/IP and choose "Manual" instead of "Using DHCP".

Changing a local IP address does not affect what websites see when you visit them. It only changes how your device talks to your router and other devices on your home network. Most people do not need to do this unless they are setting up a server or have a specific networking reason.

What to do if restarting your modem does not work

If you restart your modem and still cannot connect to the internet, or if you keep getting the same IP address after multiple restarts, check that all cables are plugged in firmly — both the power cable and the cable from your ISP (usually coaxial, fiber, or phone line depending on your connection type).

If the lights on your modem do not return to normal after five minutes, or if you see a red light instead of green, your modem may not be connecting to your ISP's network. Restart it again and wait longer. If the problem persists, contact your ISP's customer support. They can see on their end whether your modem is connecting properly and can assign you a new address manually if needed.

If you are trying to change your IP address to fix a problem with a specific website or service (like a game server or streaming service blocking your address), restarting your modem may not solve it. That service may block your new address too. In that case, a VPN is a better option because it gives you a completely different address that the service has not seen before.

Frequently Asked Questions

How long does it take to get a new IP address after restarting my modem?

Your modem usually receives a new address within two to five minutes of restarting. You can check by searching "what is my IP" in your browser. If the address is the same as before, wait 10 to 15 minutes and restart again.

Will changing my IP address make me anonymous online?

No. Changing your IP address with your ISP only changes the number your ISP assigns you — websites can still track you through cookies, login accounts, and other methods. A VPN masks your address from websites, but it does not make you fully anonymous. Your ISP still sees all your traffic.

Can I change my IP address without restarting my modem?

Not directly. Your ISP controls your public IP address, and restarting your modem is the standard way to ask for a new one. You can change your local IP address (the one your device uses on your home network) through your device settings, but that does not change what websites see.

What if my ISP will not give me a new IP address?

ISPs are not required to change your address on demand. If restarting your modem does not work and your ISP refuses to help, a VPN is your best option. A VPN masks your address from websites without requiring your ISP's permission.

Does a VPN change my IP address with my ISP?

No. A VPN hides your address from websites, but your ISP still sees the same address you have always had. The VPN only masks your address from the services you visit, not from your ISP.