25Solving ProblemsOff — The computer is not detecting a•physical connection to the network.NOTE: The link integrity light on the networkconnector is only for the wired cableconnection. The link integrity light does notprovide status for wireless connections.NOTE: If you cannot connect to the Internetbut have successfully connected in thepast, the ISP might have a service outage.Contact your ISP to check the servicestatus, or try connecting again later.Power ProblemsIf the power light is off — The computer iseither turned off or is not receiving power.Reseat the power cable into both the•power connector on the computer and theelectrical outlet.If the computer is plugged into a power strip,•ensure that the power strip is plugged intoan electrical outlet and that the power stripis turned on. Also bypass power protectiondevices, power strips, and power extensioncables to verify that the computer turns onproperly.Ensure that the electrical outlet is working•by testing it with another device, such as alamp.Check the AC adapter cable connections.•If the AC adapter has a light, ensure that thelight on the AC adapter is on.If the power light is solid white and thecomputer is not responding — The display maynot be responding. Press the power button untilthe computer turns off and then turn it back on.If the problem persists, see theDell TechnologyGuide on your computer or on the Dell Supportwebsite at support.dell.com.