Buffering videos, frozen video calls and pages that won’t load: connection problems affect everything you do online. The trick is to work out where the problem is before trying to fix it.
Step 1: Narrow down the problem
- Is it just this computer? If phones and other devices are fine, the problem is on your computer.
- Is it every device? Then it’s your router or your internet provider.
- Is it only in certain rooms? That’s a Wi-Fi coverage problem.
Step 2: Run a speed test
isit a speed test site (such as speedtest.net or fast.com) and compare the result to what you pay for. Then, if you can, test with a computer plugged directly into the router with an Ethernet cable.
- Slow on cable too? The problem is likely your provider or modem.
- Fast on cable, slow on Wi-Fi? The problem is your wireless setup.
Step 3: Restart the right way
Turn off your router for 30 seconds, then turn it back on and wait for the lights to settle down. Give it another 30 seconds to connect to your internet provider.
Step 4: Improve your Wi-Fi signal
- Move the router to a central, raised spot, out of cabinets and away from thick walls, microwaves and cordless phones.
- Choose the right band. 5 GHz (and 6 GHz on newer routers) is faster but has shorter range, while 2.4 GHz reaches further but is slower and more crowded.
- Consider a mesh system if your home is large or has dead zones. It usually works better than a single range extender.
Step 5: Fix problems on your computer
If only one computer is affected:
- Forget the network and reconnect. This clears saved settings that may have gone wrong.
- Update the Wi-Fi driver from Windows Update or your PC maker’s website.
- Turn off power saving for the Wi-Fi adapter: Device Manager → Network adapters → your Wi-Fi adapter → Properties → Power Management.
- Reset network settings:
- Windows: Settings → Network & internet → Advanced network settings → Network reset.
- Mac: Hold Option and click the Wi-Fi icon in the menu bar to open Wireless Diagnostics.
Step 6: Check for bandwidth hogs
Large downloads, cloud backups, game updates and 4K streaming on other devices can slow everyone down. Many routers show which devices are using the most data in their app or admin page.
Step 7: Update router firmware
Router makers regularly release updates that fix bugs and security holes. Check your router’s app or admin page. And if your router is more than five or six years old, replacing it can make a real difference.
When to call your internet provider
Call them if:
- Speeds are slow even on a wired connection.
- The modem’s lights show no connection or keep flashing.
- There’s an outage in your area. Check their status page or app first.
The bottom line
Test first, then fix. Knowing whether the problem is your computer, your Wi-Fi or your provider saves hours of trial and error, and often leads to a simple fix like moving the router or changing bands.
