First and the foremost thing to do is that the user will be required to download the firmware update file from the downloads section of the Linksys website. Below is the detailed guide of updating the Linksys firmware through linksyssmartwifi.com.
Now that you have downloaded the firmware update file from the Linksys portal,
Open the web browser of your PC and enter the local web address of linksyssmartwifi.com and enter login user credentials.
The default values for both the username and password are “admin”. The login credentials are case sensitive values.