Network problems solved

My Windows computer will no longer connect to the internet

Make sure all the connections are firmly attached – has the wire connecting the router to the outside world become dislodged? Check the ADSL phone socket or the incoming cable connection. Examine the router lights, too: do they suggest it is connected to the outside world? If so, check the network cable that connects it to the back of your PC.

The network connection icon is missing from my Windows XP PC

The simplest way to fix this is to remove the network adapter and let Windows re-install it. Use the Windows key and Pause/Break to summon the System Properties dialogue box, select the Hardware tab and then click Device Manager. Expand the Network adapters section, right-click the adapter and choose Uninstall. Restart the computer and Windows will automatically detect and re-install the device.

I’ve changed internet service providers – do I need to change any Windows settings?

Most internet service providers (ISPs) will supply a suitable ADSL router to new subscribers, along with any necessary software. Such routers are often ‘keyed’ to the subscriber account, so it’s usually just a case of plugging it in to your phone line and installing any supplied software. However, you may need to update your email program’s settings – the ISP’s website will explain how to do this.

My Windows laptop refuses to ‘see’ wireless networks, including my own at home. Other devices connect just fine

Many laptops have a switch that toggles the wireless networking on and off, as an aid to battery preservation. This may be a physical switch, though very often it is embedded into one of the function keys. Look for a key that is labelled ‘Fn’ or ‘Function’ and hold this down while tapping the function key that has a wireless or aerial logo.

The walls in my house are too thick for reliable wireless networking. Can I boost the signal strength of my computer?

No, but if your domestic mains wiring is relatively new, try Homeplug networking. One adapter plugs into a mains socket and connects your router. Then, other adapters can be plugged into other mains sockets elsewhere in the house to provide a wired network connection over the mains electricity ring.