Linksys smart Wi-Fi Routers could be upgraded from the router?s setup page either choosing automatic or manual firmware upgrade using the linksysmartwifi default login web protocol address linksyssmartwifi.com login. Essentials for firmware upgrade of Linksys smart wifi router via linksyssmrtwifi.com login: You must have set up Linskys smart Wi-Fi Router to connect it to the computer using internet cable for stable Wi-Fi connectivity because unstable Wi-Fi connections would cause permanent damage to Router?s firmware. Access Linksyssmartwifi default login linksyssmartwifi.com web address from Linksys supporting web browsers to perform the Linksys firmware upgrade process. To update the Linksys router firmware, be assured to download the latest firmware version for your model for adding enhancements to the router.