What refreshing your IP address does and doesn't do
Refreshing your IP address means asking your internet service provider (ISP) to assign you a new one. Your ISP hands out temporary addresses to every device that connects to the internet — this is how data knows where to find you. When you refresh, you get a different number. This can help if a website is blocking your old address, if you're troubleshooting a connection problem, or if you want a modest privacy bump by breaking the link between your old address and your browsing history.
What it doesn't do: refreshing your IP address does not hide your activity from your ISP itself, does not encrypt your traffic, and does not protect you from malware or phishing. It's a narrow tool for a specific problem, not a security overhaul. If you're looking for real privacy from ISPs or public networks, you need a VPN (virtual private network) — a different thing entirely.
Key Takeaways
- Your IP address is assigned by your ISP and changes automatically when you restart your modem, usually within minutes to a few hours.
- On Windows, use Command Prompt to run ipconfig /release followed by ipconfig /renew; on Mac, go to System Settings > Network and click Renew DHCP Lease.
- Refreshing your IP address does not hide your activity from your ISP or protect you from hackers — it only breaks the link between your old address and past browsing.
- If a website blocks your address, refreshing may work once, but repeated blocking suggests you need to contact the website or change your behavior on it.
- Most home networks use DHCP (automatic addressing), so you cannot pick a specific new address — the ISP chooses it.
The simplest way: restart your modem
The easiest method is to unplug your modem from power, wait 30 seconds, and plug it back in. Your modem is the device that connects to your ISP's network — usually a box from your ISP or a device you own. When it restarts, it contacts your ISP and requests a new IP address. This normally takes two to five minutes.
If you have a combined modem-router (sometimes called a gateway), unplugging it will also restart your router, which is fine. If your modem and router are separate, you only need to restart the modem. Restarting the router alone will not get you a new IP address from your ISP.
This method works because most home networks use DHCP (Dynamic Host Configuration Protocol), which means your ISP assigns you a temporary address that expires and renews. A restart forces that renewal when ready instead of waiting for the lease to expire on its own.
On Windows: using Command Prompt
If you want to refresh without restarting your modem, you can release and renew your address through Windows. Open Command Prompt as an administrator: press the Windows key, type cmd, right-click "Command Prompt", and select "Run as administrator".
Type this command and press Enter:
ipconfig /release
This tells your device to give up its current IP address. You may lose internet for a moment. Then type:
ipconfig /renew
This asks your ISP for a new address. You should see a new IP address appear in the output. The whole process takes under a minute. If the renew command fails or hangs, restart your modem instead — that's the more reliable path.
On Mac: using System Settings
On a Mac, go to System Settings (or System Preferences on older versions). Click "Network" in the sidebar. Select your active connection — usually "Wi-Fi" or "Ethernet" — and click "Advanced" if you see that button.
Look for a button labeled "Renew DHCP Lease" and click it. Your Mac will contact your ISP and request a new address. This takes a few seconds. You can check your new IP address by going back to the Network settings and looking at the "IP Address" field, or by visiting a site like whatismyipaddress.com in your browser.
If you don't see a "Renew DHCP Lease" button, your connection may be set to manual IP assignment instead of automatic. In that case, restart your modem — that's the more straightforward approach.
When refreshing your IP address actually helps
Refreshing works well if a website or service has blocked your old address because of too many login attempts, automated requests, or other suspicious activity. A new address often lets you access the site again. However, if the blocking happens repeatedly, the real problem is usually your behavior on that site — too many failed logins, running a bot, or something similar. Getting a new address is a temporary fix, not a solution.
It also helps if you're troubleshooting a connection problem and your ISP asks you to refresh your address. Some connection issues stem from a stale or misconfigured address lease, and renewing clears that out.
For privacy, refreshing gives you a small benefit: it breaks the link between your old IP address and your browsing history on that ISP's network. If you're concerned about an ISP tracking your activity, though, refreshing your address is not enough — you need a VPN, which encrypts your traffic so your ISP cannot see what sites you visit.
What happens if you refresh multiple times in a row
If you refresh your IP address several times quickly, your ISP may notice and either assign you the same address again or temporarily prevent new assignments. ISPs manage a limited pool of addresses and expect them to be used for a reasonable time. Refreshing once or twice is normal. Refreshing dozens of times in an hour looks like an attack or a misconfigured device, and your ISP may throttle or block the requests.
If you need a genuinely different address for privacy or access reasons, waiting a few hours between refreshes gives your ISP time to cycle the address back into the pool. Restarting your modem and then waiting overnight is more effective than refreshing repeatedly.
Why you cannot pick your own IP address at home
Home networks use DHCP, which means your ISP assigns addresses automatically. You cannot request a specific address or hold onto one permanently. Your ISP controls the pool of addresses available to your area and decides which one you get each time you connect.
Some business internet plans offer static IP addresses — addresses that stay the same — but these cost extra and are not standard for residential service. If you need a static address for a specific reason, contact your ISP to ask whether they offer it and what it costs.
Frequently Asked Questions
Will refreshing my IP address hide me from hackers?
No. Refreshing your address does not protect you from hackers on your network or the internet. It only changes the number that identifies you to your ISP and websites. Hackers can still see your new address once you visit a site or connect to a network. For protection from hackers, use a firewall (your router has one built in), keep your devices updated, and use strong passwords.
Does refreshing my IP address erase my browsing history?
No. Your browsing history is stored on your device and in your browser, not tied to your IP address. Refreshing your address breaks the link between your old address and websites you visited, but the history remains on your computer. To erase it, clear your browser cache and history through your browser settings.
How often should I refresh my IP address?
Most people never need to refresh their IP address. Your ISP renews it automatically on a schedule (usually every few days to weeks). Refresh only if a website blocks you, your ISP asks you to troubleshoot, or you want a privacy bump after heavy browsing. Refreshing more than once a month is unusual and suggests a deeper problem worth investigating.
Can I refresh my IP address on my phone?
On most phones, you cannot manually refresh your IP address through settings. Your phone's DHCP client handles it automatically. If you need a new address on your phone, restart the phone or toggle Wi-Fi off and back on. If you're on cellular data, your carrier assigns the address and you cannot refresh it yourself.
What if my IP address doesn't change after I refresh?
Your ISP may assign you the same address again, especially if you refresh when ready. Wait a few hours and try again, or restart your modem instead of using the command-line method. If the address never changes, contact your ISP — it may indicate a problem with your modem or account.