http://www.sapido.com.tw/ User Manual v1. 0.035This function can upgrade the firmware of the router. There are two methods for user upgradefirmware: Auto upgrade and Manual upgrade.Caution: To prevent that firmware upgrading is interrupted by other wireless signals and causes failure.We recommend users to use wired connection during upgrading.Note : The firmware upgrade will not remove your previous settings.4.4.1 Auto upgradeIt provide auto detect new firmware from Internet, and user can select toupgrade new version or not.4.4.2 Manual upgradeIf you download firmware from website, you can upgrade firmware manualas below.4.5 DoSIt provide 2 kind of Denial of Service: Home and Enterprise