How To Release An IP Address | Fix Stuck Connections

A stuck IP address can make Wi-Fi feel broken when the router, cable, and internet plan are all fine. Your device may hold an old DHCP lease, clash with another device, or keep routing traffic through stale settings. Releasing the address clears that lease and gives the network a clean chance to assign one again.

This is a local network fix. It usually changes the private address your router gives your phone, laptop, or desktop, such as 192.168.1.24. It does not always change the public address your internet provider assigns to your home. For a public address change, your modem, router, and provider lease rules matter.

What Releasing An IP Address Does

Most home and office networks use DHCP, which hands devices an address, gateway, DNS details, and lease time. The IETF DHCP specification defines how a client receives and gives up lease data from a DHCP server. When you release an address, your device tells that server it no longer wants the lease. When you renew it, the device asks for network details again.

The new address may match the old one. That’s normal. Routers often hand the same address back to the same device because they remember its network card address. The value is not always a new number; the value is clearing stale lease data and asking the network to rebuild the connection.

When A Release And Renew Helps

Try this when the device is connected to Wi-Fi or Ethernet but pages will not load, apps stall, or local devices cannot see each other. It can also help after swapping routers, changing network ranges, moving between office VLANs, or fixing a duplicate IP warning.

It is less useful when every device is offline. In that case, the router, modem, or provider link is more likely at fault. Start with the device that has the problem, then widen the fix only if other devices show the same pattern.

• Good fit: one laptop has no internet while your phone works on the same Wi-Fi.
• Good fit: Windows reports an IP conflict or unidentified network.
• Poor fit: the router has no internet light or the modem is offline.
• Poor fit: a website is down for everyone, not just your device.

Before You Run The Commands

Save any open cloud work, file transfers, calls, or remote sessions. Releasing an IP address breaks the active network link for a moment. If you are connected to a remote PC and run the release command on that same PC, you may cut off your own access.

Check whether the device uses a manual address. A release and renew works with DHCP. If the address is manually typed into the network settings, you need to change that manual entry or switch the adapter back to automatic addressing.

Write down the current details before changing anything:

• Current IPv4 address
• Default gateway
• DNS servers
• Adapter name, such as Wi-Fi, Ethernet, or USB-C LAN

Device Or System	What To Do	What To Expect
Windows 10 Or 11	Run ipconfig /release, then ipconfig /renew	The adapter drops its DHCP lease, then asks the router for details again.
macOS	Open TCP/IP settings and press Renew DHCP Lease	The Mac requests a fresh DHCP lease without using Terminal.
Linux Desktop With NetworkManager	Restart the connection with nmcli	The connection deactivates, then activates with fresh DHCP data.
Router Admin Page	Release or renew WAN lease when that option exists	The router asks the provider side for address details again.
Phone Or Tablet	Forget the Wi-Fi network, reconnect, then enter the password	The device rebuilds its Wi-Fi profile and requests an address again.
Game Console	Restart network setup or set IP settings to automatic	The console drops stale network data and asks the router again.
Printer Or Smart Device	Power cycle it, then reconnect it to the same network	It requests a new lease, but the router may give the same address back.

Releasing An IP Address On Windows, Mac, And Linux

The safest method depends on the system. Windows uses ipconfig, macOS has a Renew DHCP Lease button, and many Linux desktops use NetworkManager. The Microsoft ipconfig command reference lists the Windows release and renew switches.

Windows Steps

Open Command Prompt as an administrator if normal Command Prompt fails. Then run these lines one at a time:

1. ipconfig /all to view the current adapter details.
2. ipconfig /release to drop the DHCP lease.
3. ipconfig /renew to ask for a lease again.
4. ipconfig /flushdns if websites still point to old records.

Windows Command Notes

If you have several adapters, Windows may release more than the one you care about. You can name an adapter, but spacing and spelling must match. If the command says no operation can be performed, check that the adapter is enabled and set to get an address automatically.

Mac Steps

On a Mac, open System Settings, choose Network, select Wi-Fi or Ethernet, then open Details. Choose TCP/IP and press Renew DHCP Lease. Click OK if macOS asks you to confirm. This keeps the process inside the normal settings screen, which is easier than typing commands.

Linux Steps

Many Linux desktops and servers use NetworkManager. The nmcli reference manual explains how its command line tool controls network connections. A common pattern is:

nmcli connection show
nmcli connection down "Your Connection Name"
nmcli connection up "Your Connection Name"

Use the exact connection name shown by the first command. On some server setups, another network service may manage the adapter, so check the system’s network tool before changing a production machine.

Result	Likely Meaning	Next Move
Same address returns	The router reused the lease for that device.	Test the connection. Same number is fine if traffic works.
169.254 address appears	The device did not reach a DHCP server.	Check cable, Wi-Fi password, router DHCP, or adapter status.
No default gateway	The device lacks the router address.	Renew again, restart the adapter, or restart the router.
Duplicate IP warning	Two devices may share one address.	Remove manual addresses or reserve each device in the router.
DNS errors remain	Name lookup may still be stale.	Flush DNS cache or set trusted DNS servers.

If The Address Comes Back The Same

Do not treat the same address as failure. DHCP often renews the same lease because it is still free and already linked to your device. The real test is whether the gateway, DNS, and internet traffic work after the renew.

If you truly need a different local address, change the DHCP reservation in the router or shorten the lease only for a controlled network. Random address changes can break printers, shared folders, and port rules. For a home network, a fixed reservation in the router is cleaner than typing manual addresses into every device.

Safe Fixes When The Release Fails

If the release command stalls or renew never gets a valid address, work from the device outward. Disable and re-enable the adapter, then restart the router if other devices also act up. Replace the Ethernet cable when wired links blink in and out.

Next, check DHCP on the router. The address pool may be full, especially on a crowded guest network. A pool with only ten available addresses can run out after phones, tablets, TVs, printers, and laptops join. Increase the pool size or remove old reservations you no longer need.

For stubborn Windows cases, reset the network adapter from Settings or run a network reset after saving work. On macOS, remove the Wi-Fi service and add it again only after you know the password. On Linux, review the connection profile before deleting it, since wired servers may need static routes or DNS entries.

Checks Before You Close The Tab

After the renew, run one simple test at each layer. Open the router page by typing the gateway address in the browser. If that loads, the local link works. Then open a normal website. If the website fails but the router page loads, DNS or provider routing may be the real issue.

• Confirm the IP address matches your router range.
• Confirm the default gateway is present.
• Confirm DNS servers are listed.
• Restart only the affected app before rebooting the whole device.
• Save working settings if you manage a small office network.

Releasing an IP address is a low-risk fix when the device uses DHCP and you are not cutting off a remote session. Use it to clear stale lease data, then read the result. The address number matters less than a valid gateway, working DNS, and a connection that stays steady.