I have a laptop and wireless modem in the lounge and a wired pc upstairs how can I use internet upstairsrs?

Use a wireless usb adapter, they're very cheap nowadays pcworld.co.uk/gbuk/wireless-cards-adapte....

I am assuming that the wireless modem downstairs is already set up and broadcasting a wireless signal to the laptop. You would need to add a wireless card to the upstairs PC. You can either get one that installs inside the computer in one of the slots on the back, or you can ber a USB adapter that plugs into a USB port.

Both work the same and are just as easy to configure, and cost about the same. Only the USB one does not require you to open the case to install it. Assuming you are with 100 to 150 feet of the modem (the signal travels up as well as out), you should be able to get a wireless signal upstairs and have Internet.

Connect another wireless router upstairs either set as repeater/extender or another dhcp.

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