How to Erase Your Router Before Selling or Recycling

Why erase a router before it changes hands

Your router holds more than the firmware that runs the network. It can keep the Wi-Fi network name and passphrase, the administrator password, port forwarding rules, VPN settings, and device names. If those settings stay on the device, the next owner could see the shape of your home network and may be able to reuse credentials that you still use elsewhere.

Clearing those settings is the main job. The strongest protection for a network in use is modern Wi-Fi security such as WPA3, but stored settings are separate from encrypted traffic. A factory reset returns the router to the state it had when it left the factory, removing your Wi-Fi password, admin login, and most custom rules.

Start with a factory reset

Most routers have a recessed reset button on the back or bottom. With the router powered on, press and hold that button until the status light changes, then release it. The exact hold time varies by model, so check the quick start guide or the support page for your router. A simple power cycle does not clear settings; it only reboots the router.

After the reset, the router will use its default network name and have no administrator password set. That is expected. Connect to it with a wired Ethernet cable if you can, because the default wireless settings are not something you want to send over the air unprotected for longer than necessary. If you only need to clear the router and sell it, stop here and move to the next step.

For a broader refresher on protecting a router, see router security basics.

Remove the router from your cloud account when you use one

Many mesh systems and router apps pair the hardware with a cloud account. That makes setup easier, but it also means the router may stay connected to your identity after a local reset. For an eero, Google, ASUS, or TP-Link system, check the companion app for a remove, delete, or factory reset option. In most apps, you can delete the network or the individual node, and then reset the hardware.

On a mesh system, resetting the main router does not always unlink every satellite. The reliable sequence is to remove the network from the app first, then reset each unit. If the router supports a local web interface as well as an app, the same idea applies: remove the device from any account before you hand it over.

The exact menu names change, but the general steps are similar:

- eero: use the app to remove the router or network, then reset the unit.

• eero: use the app to remove the router or network, then reset the unit.
• Google: in the Google Home app, remove the device or network, then factory reset the hardware.
• ASUS: remove AiMesh nodes in the app or web interface, reset the router, and then reset any nodes.
• TP-Link: delete the Deco network in the app, then reset each Deco unit.

Update firmware, then reset one more time

A factory reset only returns the router to the firmware that is already stored on it. If that firmware is old, the router may lack fixes released after it was built. Before you pass the router on, connect to it, set a temporary administrator password, and check for a firmware update. Once the update is complete, do one final factory reset to clear the temporary password and any update-time settings. The new owner then receives a clean router with current firmware.

While the router is powered on for the update, confirm that it supports modern security. Wi-Fi Alliance makes WPA3 mandatory for Wi-Fi CERTIFIED devices and notes that WPA3 networks use the latest security protocols, disallow outdated legacy protocols, and require Protected Management Frames. If the router is too old to run WPA3, or its firmware no longer receives updates, that is a sign it may be better to recycle it than to pass it on. See router support life expectancy for guidance.

Recycle, hand off, or repurpose safely

Once the settings are cleared, you have three good paths. You can sell or give the router to someone else, recycle it through a local electronics program, or keep it as a spare. If you keep it, a clean router can become a dedicated access point or a simple network switch. Both projects start with the same clean state you just created: use an old router as an access point or turn an old router into a network switch.

Before the router leaves your hands, remove anything attached to it. A USB drive plugged into a router is not erased by a factory reset; remove it and wipe it separately. A cellular router may hold a SIM card or carrier profile; remove the card and reset again if needed. See router USB port and cellular routers.

For recycling, check your local rules. CPSC publishes safety education resources for families, and many communities have separate collection programs for electronics. At a minimum, unplug the router, remove any storage or SIM, and do not put it in the trash if your area has an electronics recycling requirement.

What to pick for your use

Questions

Will a factory reset remove the router from my account?

Not always. A factory reset clears settings on the device, but your cloud account may still list the router. Use the companion app to remove or delete the router from the account, then reset the hardware. This matters most for eero, Google, ASUS, and TP-Link mesh systems.

Should I update the firmware before selling?

Yes. Update to the latest firmware, then perform one final factory reset. That way the new owner gets current firmware without your temporary password or setup details.

What should I do if I forgot my admin password?

A hardware factory reset usually restores the router to default settings and default access. If the reset button does not work, look up the recovery procedure for your model. Do not sell a router that cannot be reset, because you cannot be sure the settings are cleared.

Do I need to remove a SIM card from a cellular router before recycling?

Yes. Remove the SIM card and any external storage before resetting or recycling. A factory reset does not physically remove a SIM card, and the card may still contain carrier or account details.

Is resetting enough if I am recycling the router?

Resetting is the important first step, but also remove USB drives, SD cards, and SIM cards. Check your local electronics recycling rules and unplug the router before you drop it off.