A user who wants to avoid the risk of sudden disconnection during the firmware update must connect the router to the computer using a wired connection via Ethernet cable. Once the update process gets done, the router automatically reboots. You can confirm the update process by visiting the Router status page from the linksyssmartwifi.com web menu Dashboard. Users are also recommended to read the release notes of the latest firmware that you are uploading in the Linksys router.
https://routerlinksyssmartwifi.com