ClearWiFi

Why is my WiFi slow? Fixes for slow, weak and unreliable WiFi

"Slow WiFi" is almost never one thing — it's one of a handful of specific, fixable problems. These guides explain each one in plain language: what it feels like, what's actually happening, and exactly how to fix it.

Slow, laggy or unreliable

WiFi lags when someone is downloading? That's bufferbloat

Video calls stutter and games spike the moment a download starts — even though your speed test looks fine. What bufferbloat is and how to fix it.

WiFi keeps freezing or dropping? Check for packet loss

Freezes, robotic call audio, and rubber-banding in games usually mean packets are being lost. How to tell whether it's your router or your internet provider — and what to do for each.

Websites slow to start loading? Your DNS may be the problem

A pause before anything appears, then the page snaps in at full speed. How to test your DNS and switch to a faster one on Android or your router.

Coverage and setup

Weak WiFi signal in one room? How to fix dead spots

What the dBm numbers actually mean, how to fix a room the WiFi can't reach, and why your phone clings to a distant access point long after you've walked away.

Slow WiFi in an apartment or busy street? Channel congestion

WiFi channels are like lanes on a road, and yours may be jammed with the neighbours' networks. How to find a clearer channel and change it in your router.

2.4 GHz vs 5 GHz WiFi: which band should you use?

One reaches further, the other is far faster. When to use each, how to tell which you're on, and what to do when your phone keeps picking the wrong one.

Security

Is my home WiFi secure? A five-minute check

Which encryption you should be using, why WPS is worth turning off, what PMF does — and the two popular "security" tips that don't actually help.

These are the same checks the WiFi Doctor in the ClearWiFi Android app runs automatically — one tap, plain-language findings, and the fix for each. No ads, no tracking, no subscription. Get it on Google Play.