Checking connection

Can you connect your computer to the internet?

No

Connect the power cable for the router, etc., the network cables and so forth.
If the power to the router and other devices is turned off, turn it on.

When you cannot connect to the internet even after checking

Restart each device. Wait a short while and then check whether the computer can connect to the internet.

For the restart procedure, the network connection method and so forth, see the instruction manual provided with each device, or contact the manufacturer.

YES

Is the machine's power turned ON?

No

Turn ON the machine.

If the machine is already ON

Turn OFF the machine and wait for at least 10 seconds before turning it back ON.

YES

Is the machine connected to the router or hub using the correct LAN cable?

No

Use a Category 5 or higher twisted pair cable for the LAN.

YES

When using the router

Is the LAN cable for the machine and computer connected to the router LAN port?

No

If the cable is connected to the WAN port of the router (or the internet port), connect it to the LAN port.
If the LAN cable is loose, connect it properly.

For instructions on how to connect, refer to the instruction manual of the router you are using, or contact the manufacturer.