When a video keeps buffering or a call drops, most people blame their internet provider. Often the real cause is the way the router is placed and configured inside the home. The good news is that you can fix many problems yourself, without buying anything new. This guide covers speed first and security second.
First, test properly
Before changing anything, run a speed test while standing near the router, using a device connected by cable if possible. Then run it again in the room where you have problems. If the speed is good near the router but poor far away, the problem is coverage inside your home. If the speed is poor even next to the router, the issue may be your plan or your provider.
Place the router well
- Put it in a central, open position, ideally at about chest height or higher.
- Keep it away from thick walls, metal shelves, mirrors, aquariums and microwave ovens.
- Do not hide it inside a cupboard or behind the television.
- Point the antennas, if adjustable, in different directions, for example one vertical and one horizontal.
Understand the two bands
Most modern routers broadcast on two frequency bands. The 2.4 GHz band reaches further and passes through walls better, but it is slower and more crowded. The 5 GHz band is faster, but its range is shorter. Use 5 GHz for streaming and calls when you are close, and 2.4 GHz for far rooms and simple devices.
Reduce interference
In an apartment building, dozens of networks compete on the same channels. Most routers choose a channel automatically, but sometimes a manual change helps. On 2.4 GHz, channels 1, 6 and 11 are the usual non-overlapping choices. Try one, test again and keep the one that works best.
Restart and update
Restart the router occasionally, for example once a month. Also check whether the router has a firmware update available in its settings page. Updates fix bugs and security weaknesses. If the router is very old and no longer receives updates, consider replacing it.
Manage the devices
Too many devices using large downloads can slow everyone. Pause automatic updates and cloud backups during important calls. Some routers have a quality-of-service setting that lets you give priority to a particular device. For a desktop computer or a television that stays in one place, a network cable is always faster and more stable than Wi-Fi.
When one router is not enough
For a large or multi-storey home, a single router may never cover everything. A mesh system or a second access point connected by cable can solve this. Avoid cheap plug-in range extenders if you can, because they often halve the speed.
Security settings that matter
- Change the router’s admin password. The default login printed on the label is widely known.
- Use WPA2 or WPA3 encryption. Avoid old methods such as WEP or open networks.
- Set a long Wi-Fi password. A passphrase of several random words is easier to remember and harder to guess.
- Turn off WPS if you do not use it, because it can be a weak point.
- Create a guest network for visitors so they do not share access to your own devices.
- Check connected devices. Look at the device list in the router page and remove anything you do not recognise, then change the Wi-Fi password.
Key takeaway
Better placement, the right band, fewer sources of interference and a few security settings can transform home Wi-Fi at almost no cost. Test before and after each change so you know what actually helped.
