NOTE: Make sure that your computer has an active internet connection. If your computer is plugged into the router and cannot get online, disconnect the computer from your router and plug it directly into your cable or DSL modem.
Visit the Linksys support site.
Enter the model number of your device in the Search by Product or Model Number search field and press [Enter].
On the Product Results, click on the button of your device.
You will be directed to the product's support page. Click on the DOWNLOADS / FIRMWARE button.
Select the hardware version of your device.
The hardware version is located beside or beneath the model number and is labeled version, ver., or V. If there is no version number beside the model number on your Linksys product, the device is Version 1. If you still have trouble finding your version number, see the complete article to learn more.
Under the Firmware, click the Download link to start downloading your file.
NOTE: Once the download is complete, you may proceed with the driver or firmware update of your Linksys device.
For instructions on how to update the driver or firmware of your Linksys device, click either of the following links:
Manually upgrading your Linksys Wi-Fi Router's firmware
Updating the Linksys network adapter’s driver
Upgrading the Linksys range extender's firmware
Manually upgrading the firmware of a mesh WiFi system