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You need to acquire a wifi dongle - your local PC World is a good place to start. It's a doohickey that plugs into a USB port on your pooter.
Alternatively, if you already have a router you could use powerline adapters.
If you are using a pc you can either buy a wifi pci card or a usb wifi dongle. If you have a laptop the chances are you already have wifi built in (or you will need to buy a usb wifi dongle). Your router/cable modem should have come with a setup cd which you can use to setup and configure your wireless network if it is not already turned on. To reconfigure your router/modem you will need to connect your pc/laptop with an ethernet cable. Your router/modem password if you haven't changed it will probably be in the manual or on the bottom of the device.
Internet and networking via the household electrical circuits
I have an external dongle on mine, but can't say it's very reliable. I've tried a couple of them and internet connection keeps dropping out. I know it's not the modem or router because the laptops in the house don't have the same problem so i'm thinking about powerline adapters.
Hello LWJ ... long time no see
I bought a cheapo powerline set from eBuyer a year or so back because of the same wifi dropouts. Works like a charm, no software to install, just plug in and go. Recommended for desktop PCs, probably a pain for laptops.
Hi Muttley, hope you're keeping well.
I'm going to have a serious look at getting something like that. Connection is driving me nuts at the moment.
Fingers crossed seem to be up and running !
Turn it off and turn it on again, this is the advice I always get from the "Experts"