How-To

How to Renew Your IP Address on Any Device

Step-by-step guide to renewing your IP address on Windows, macOS, iPhone, and Android, plus how to power-cycle your router to get a new public IP from your ISP.

6 min read

What Does Renewing an IP Address Mean?

Renewing your IP address means asking the DHCP server — either your router (for local/private IP) or your ISP (for your public IP) — to release your current lease and issue a new one. On a local network, this changes the private address your device uses. At the router level, it may also prompt your ISP to assign a different public IP address.

You can check your current public IP before and after using the What's My IP tool. For context on why IPs change in the first place, see our guide on why your IP address changes.

Why You Might Want to Renew Your IP

  • Troubleshoot connectivity — A corrupted or conflicting DHCP lease can cause network errors; releasing and renewing clears the problem.
  • Get a new public IP — If your IP has been flagged, rate-limited, or banned by a service, a fresh address may resolve the issue.
  • Privacy — Changing your public IP periodically reduces the ability of sites to track you by IP alone.
  • Resolve IP conflicts — Two devices accidentally assigned the same IP causes connectivity failures; renewing forces a new, unique assignment.

Method 1: Windows — ipconfig /release and /renew

This is the fastest and most reliable method on Windows:

  • Press Win + S, type cmd, right-click Command Prompt, and select Run as administrator.
  • Type ipconfig /release and press Enter. This releases your current DHCP lease. Your internet connection will drop briefly.
  • Type ipconfig /renew and press Enter. Windows requests a new lease from the DHCP server.
  • Run ipconfig to confirm your new IP address under the active adapter.

To also flush cached DNS records after renewing, run ipconfig /flushdns. This prevents stale DNS cache from causing issues after the IP change. See our guide on what DNS is for more context.

Method 2: macOS — Renew DHCP Lease

  • Open System Settings → Network.
  • Select your active interface — Wi-Fi or Ethernet.
  • Click Details… (macOS Ventura and later) or Advanced… (older macOS).
  • Go to the TCP/IP tab.
  • Click Renew DHCP Lease. Your connection will briefly drop while a new lease is negotiated.

Terminal alternative: Open Terminal and run sudo ipconfig set en0 DHCP (replace en0 with your interface name, visible via ifconfig). This forces an immediate DHCP renewal.

Method 3: iPhone — Renew Lease

  • Open Settings → Wi-Fi.
  • Tap the (i) icon next to your connected network.
  • Scroll down and tap Renew Lease.
  • Tap Renew Lease again on the confirmation prompt.

This releases your iPhone's private IP lease from the router and requests a new one. It affects your private IP on the local network, not your public IP directly.

Method 4: Android — Forget and Reconnect

Android does not expose a direct "Renew Lease" button in most versions, so the cleanest method is:

  • Go to Settings → Wi-Fi.
  • Tap and hold your connected network (or tap the gear/info icon).
  • Select Forget (or Remove network).
  • Reconnect to the network by selecting it and entering your password.

Alternative: Go into the network's settings → IP settings → change from DHCP to Static → save → change back to DHCP→ save. This forces a new DHCP request without forgetting the network.

Method 5: Router Power Cycle (Most Effective for Public IP)

The previous methods change your private IP (the one your device uses on your local network). To change your public IP — the one websites see — you need to renew the DHCP lease between your router and your ISP:

  • Unplug your router (and modem if separate) from the power socket.
  • Wait at least 60 seconds — this gives the DHCP lease time to expire on the ISP's side.
  • Plug the router back in and wait for it to reconnect fully.
  • Check your new public IP at What's My IP.

Longer outages (5–10 minutes) increase the likelihood of receiving a new public IP, as the ISP is more likely to have returned the old address to the pool.

Method Comparison

MethodPlatformChanges Private IPMay Change Public IPDifficulty
ipconfig /release + /renewWindowsYesNo (router unchanged)Easy
Renew DHCP Lease buttonmacOSYesNo (router unchanged)Easy
Renew Lease (Settings)iPhoneYesNo (router unchanged)Easy
Forget and reconnectAndroidYesNo (router unchanged)Easy
Router power cycle (60 s+)All devicesYes (via router DHCP)Often yesEasy
Use a VPNAll devicesNoYes (VPN server IP shown)Moderate

When Renewal Won't Work

There are three situations where renewing your IP will not produce a new public address:

  • Static IP — If you or your ISP has configured a static IP, DHCP renewal simply re-assigns the same fixed address every time. See our guide on static vs. dynamic IP for more detail.
  • CGNAT — If your ISP uses Carrier-Grade NAT (common on Du mobile in the UAE), you do not have your own public IP to change. The shared address is managed entirely by the ISP's infrastructure.
  • Sticky DHCP — Some ISPs deliberately re-assign the same IP to the same router's hardware address. In this case, no amount of power-cycling will produce a new IP without an extended offline period or a MAC address change.

Realistic Expectations

Renewing your IP is a useful troubleshooting step for connectivity issues and can sometimes produce a new public address. However, it is not guaranteed to change your public IP, and it will not provide anonymity — your ISP always knows which customer is using which address. For a reliable change of apparent public IP, consider a VPN or a proxy server. For more privacy-focused advice, see our guide on how to hide your IP address.

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