How to Fix Wi-Fi That Keeps Dropping or Running Slow

Few things are as frustrating as a video call freezing or a film buffering for the third time in an evening. This guide is for anyone with home broadband who wants to work out why their Wi-Fi keeps dropping or crawling, and fix it without technical knowledge. You will learn how to test your connection properly, find the likely cause and apply the fixes that make the biggest difference, plus when to call your provider instead.

First, Work Out Where the Problem Is

Home internet has two parts that are easy to confuse. There is the broadband connection coming into your home from your provider, and there is the Wi-Fi, the wireless signal your router sends around your home. Slow or dropping internet can come from either one, and the fixes are very different. Spending five minutes finding out which is at fault saves hours of trying the wrong solutions.

1. Run a speed test next to the router Stand within a couple of metres of the router and use a well-known speed test website or app. Note the download speed, upload speed and ping.
2. Run the same test where the problem happens Repeat it in the room where things go wrong, such as an upstairs bedroom or home office.
3. Test with a cable if you can If you have a laptop with an Ethernet port or adapter, plug it straight into the router with a network cable and test again. This takes Wi-Fi out of the picture entirely.
4. Compare with what you pay for Check your broadband contract or provider account for the expected speed. Providers often quote an average or minimum guaranteed speed rather than the maximum.
5. Check more than one device If only one phone or laptop struggles, the problem is likely that device rather than your network.

Quick Fixes to Try First

These simple steps fix a surprising number of problems and take only a few minutes.

1. Restart the router properly Switch it off at the wall, wait at least 30 seconds, then switch it back on and give it several minutes to fully reconnect. This clears temporary faults and memory problems.
2. Restart the device too Phones, laptops and smart TVs can also get stuck. Turn them fully off and on, not just to sleep.
3. Check for an outage Look at your provider's service status page or app, ideally using mobile data. If there is a known fault in your area, you can stop troubleshooting and wait.
4. Check the router lights Most routers have a light that shows whether the broadband line is connected. Red, orange or flashing lights often signal a line problem; your router's manual or provider's help page explains what each colour means.
5. Check cables and filters Make sure the cable from the wall socket to the router is firmly plugged in and undamaged. Some older phone-line connections need a small filter at the socket.
6. Forget and rejoin the network On a device that keeps dropping, remove the saved Wi-Fi network in settings, then reconnect and re-enter the password.

If a restart fixes things but the problem keeps coming back every few days, that is a sign of a deeper issue, often outdated router software or a router that is failing. Keep reading.

Feel the router too. If it is hot to the touch, it may be overheating, which can cause random dropouts. Make sure its vents are not covered, it is not stacked on top of other electronics, and it is not sitting in direct sunlight or next to a radiator. A router that is boxed in with other equipment in a cupboard is a common culprit for evening dropouts, when it is working hardest.

On laptops and phones, also check that any battery saver or low power mode is not throttling Wi-Fi, and that a VPN app is not slowing things down. Temporarily switching a VPN off and retesting is a quick way to rule it out.