How to Fix Slow Wi-Fi

Test the connection properly

Run a speed test close to the router, then compare another device and a wired connection if available. This separates an internet-provider issue from Wi-Fi range or one-device trouble.

Improve router placement

Put the router in an open, central and elevated location away from thick walls, microwaves and large metal objects. Restart it, update its firmware and use 5 GHz or 6 GHz nearby; 2.4 GHz often reaches farther.

Fix one device

Forget and reconnect to the network, disable an unnecessary VPN temporarily and install system updates. For a slow Windows computer, continue with Windows 11 performance checks.

Find where the Wi-Fi slowdown begins

Test beside the router with one device, then repeat in the problem room. Compare another phone or computer on the same network. If every device is slow even near the router, restart the modem and router in the order recommended by the provider and test with Ethernet if possible. A good wired result with poor Wi-Fi points toward radio coverage or interference; poor wired and wireless results point toward the internet service, modem or upstream network.

Improve placement and radio conditions

• Place the router in an open, central and elevated position rather than inside a cabinet.
• Keep it away from large metal objects, aquariums and devices that create radio interference.
• Use the faster short-range band near the router and the longer-range band where walls weaken the signal.
• Update router firmware through its official administration page or provider app.
• Use a unique Wi-Fi password and modern security mode supported by all essential devices.

Do not install an extender until you identify a location that receives a strong existing signal; repeating a weak connection produces a weak result.

Record evidence before contacting support

Run tests at similar times with downloads and cloud backups paused. Note wired and wireless speeds, latency, affected rooms, device names and whether the problem is constant or time-specific. Compare results with the service plan while remembering that Wi-Fi rarely matches the maximum advertised wired rate. If outages or severe packet loss affect Ethernet too, give the provider these measurements. This evidence helps separate congestion, line faults and home coverage problems.