How to Update Router Firmware Safely

Why firmware updates matter

Router firmware is the low-level software that controls Wi-Fi, routing, security, and management. Vendors release updates to fix bugs, close security holes, improve performance, and add features. Skipping updates can leave your network with known vulnerabilities.

Security updates matter because routers sit between your devices and the internet. The Wi-Fi Alliance requires WPA3 and Protected Management Frames for new certified devices, and firmware updates are how older routers keep up with evolving standards. Router security is a foundational part of home networking; see router security basics.

Check the current firmware version

Before updating, find your router's current firmware version. Log in to the router admin page or open the companion app, then look for an Administration, System, or Status section. Write down the version, model number, and hardware revision. The model and hardware revision matter because the wrong firmware file can make the router unusable.

If you are not sure how to reach the admin page, see how to find the router IP address and how to log in to the router admin page.

Download the correct firmware file

Go to the router maker's official support website and locate the firmware section for your exact model and hardware revision. Download the file to a computer or phone that is connected to the router, preferably over a wired connection. Do not download firmware from unofficial forums or file-sharing sites.

If the vendor offers an in-app update, that is usually the safest route because the app checks the model and version for you. The same logic applies to mesh systems and travel routers; see how to enable automatic router firmware updates if you want to reduce manual checks.

Back up your settings before you update

Most firmware updates preserve your configuration, but not always. A backup lets you restore your Wi-Fi name, password, parental controls, port forwards, and VPN settings if anything is reset. Look for a Backup or Export option in the admin page and save the file somewhere safe.

If you have never backed up, do it before every major update. The process is covered in how to back up and restore router settings. A backup is especially important before a large version jump, because vendor tools sometimes reset settings when moving between firmware generations.

• Write down your admin password and Wi-Fi password in a secure place.
• Note any custom DHCP reservations or static routes.
• Save the backup file on a device that is not the router itself.

Install the update

Start from the router admin page or app, choose the firmware update option, and select the downloaded file if the page asks for one. Do not disconnect power, close the browser, or reboot the router during the update. The router may reboot once or twice; wait until the admin page comes back before touching anything.

For a mesh system, update the primary node first, then let satellites follow. For a standalone router, update during a quiet period when nobody is on a video call or playing an online game. If you use a gaming router, pick a time between matches.

After the update finishes, the router usually reboots. Reconnect your devices and check that the new version appears in the status page. If the router does not come back, see how to reboot router or router firmware update failed.

Restore settings and verify

If the update resets the router, use the Restore or Import option to load the backup file. Confirm that your Wi-Fi network name, password, security mode, and any guest networks are still set the way you want. Also check that WPA3 is enabled if your router supports it; the Wi-Fi Alliance notes that WPA3 offers stronger protections for Wi-Fi CERTIFIED devices.

Once settings are restored, verify internet access on a phone, laptop, and any smart-home hubs. If some devices will not reconnect, a simple reboot often fixes it. You can also confirm the router is using updated security by reading the admin page after the update.

Firmware update checklist

Use this checklist to keep the process predictable and reduce the chance of a failed update.

What to do if the update fails

A failed firmware update is stressful but not always fatal. If the router is still running, try downloading the file again, check that the model and hardware revision match, and run the update once more. If the admin page does not load, use the router's reset button to return to factory defaults first, then attempt recovery mode.

Recovery procedures vary by maker. Some routers let you upload firmware through a dedicated recovery page, while others require a special tool. Read the bricked router recovery guide if the router will not start normally. If the router is still under support, the maker's warranty page is the right place to look for help.

Do not install beta firmware on a router you rely on every day. Beta builds are for testing and can introduce problems. Stick with stable updates unless you need a specific new feature.

What to pick for your use

Questions

How do I know if my router has a firmware update?

Check the admin page or companion app for a Firmware Update or System Update section. Many routers also let you enable automatic checks. If updates are available, the page shows the latest version and a download button.

Can I update firmware wirelessly?

Yes, most modern routers allow updates over Wi-Fi. For major updates, a wired connection is more stable, but in-app updates are usually fine. Keep the router powered and do not close the browser until the update finishes.

Will updating firmware erase my settings?

Usually not, but it can happen. Always back up the configuration file before updating so you can restore your Wi-Fi name, password, and other settings if needed.

What if the update fails halfway?

Try downloading the file again and running the update once more. If the router stops responding, use the reset button and look for recovery instructions for your model. See the router firmware update failed guide.

Should I update through the router's app or web interface?

Use whichever gives you the clearest model and version information. Apps are convenient for mesh systems, but the web admin page often shows more detail. Both are safe as long as you use the official vendor tool.

Do mesh routers update themselves automatically?

Many mesh systems have automatic update options, but you should still check occasionally. Automatic updates are convenient, but for critical moments, you may want to schedule updates for a quiet period.