The most common reasons your phone won't connect

Your phone won't connect to WiFi because of one of four things: the WiFi network itself is down or misconfigured, your phone is too far from the router, your phone's WiFi hardware or software has a problem, or there's a conflict between your phone and the network. Most of the time it's the first one — the network is working fine but your phone can't see it or can't authenticate to it.

Start by checking whether other devices in your home can connect to the same WiFi network. If your laptop, tablet, or another phone connects without trouble, the problem is almost certainly with the phone that won't connect. If nothing connects, the problem is your router or internet service, and you should restart your modem and router before going further.

Key Takeaways

  • If other devices connect to your WiFi but your phone doesn't, restart your phone first — this fixes most connection problems in minutes.
  • Forgetting the network and reconnecting forces your phone to re-enter the password, which catches typos and corrupted connection data.
  • If your phone sees the network but won't connect, move closer to the router to rule out range or signal strength as the cause.
  • Turning off WiFi sleep mode or power-saving features prevents your phone from disconnecting when the screen goes dark.
  • If one phone won't connect but others do, a factory reset of that phone usually solves the problem when other fixes don't work.

Restart your phone and the router

Restart your phone first. Power it off completely, wait 10 seconds, and turn it back on. This clears temporary software glitches that prevent WiFi from working. While your phone is restarting, unplug your router's power cable, wait 30 seconds, and plug it back in. Let the router fully restart — the lights on the front will stop blinking and stabilize after about two minutes.

After both devices have restarted, try connecting to the WiFi network again. If your phone now connects, you're done. If it still won't connect, move to the next step. Restarting fixes roughly half of all connection problems because it clears the phone's WiFi memory and resets the router's connection table.

Forget the network and reconnect with the password

Go to your phone's WiFi settings and find your network name in the list of available networks. Tap it and select "Forget" or "Remove" — the exact wording depends on whether you have an iPhone or Android phone. This erases your phone's stored connection information for that network, including any corrupted password data.

Now find the network again in the available list and tap it. Your phone will ask you to enter the WiFi password. Type it carefully — passwords are case-sensitive, and a single wrong character will prevent connection. If you're not sure of the password, check the sticker on the back or bottom of your router. After you enter the password correctly, your phone should connect within a few seconds.

This step catches two common problems: a typo in the password that your phone has been trying to use, or corrupted connection data that your phone stored the first time you connected. Forgetting and reconnecting clears both.

Check your phone's distance from the router

Move your phone to within 15 feet of the router and try connecting again. WiFi signal weakens with distance and through walls, and a phone that won't connect at the far end of your house might connect right next to the router. If it connects when you're close but disconnects when you move away, your router's signal isn't reaching that part of your home.

If your phone connects when close to the router but you need it to work in another room, you have two options: move the router to a more central location, or add a WiFi extender or mesh system to strengthen the signal in distant areas. For now, if the phone connects when close, you know the network and phone are both working correctly.

Turn off WiFi sleep mode and power-saving features

Some phones automatically disconnect from WiFi when the screen turns off to save battery, then fail to reconnect when you wake the phone. On Android, go to Settings, then WiFi, then tap the three-dot menu and select "Advanced". Look for "WiFi sleep policy" or "WiFi power saving mode" and set it to "Never" or "Always on".

On iPhone, go to Settings, then WiFi, then tap your network name. Look for "Auto-Join" and make sure it's turned on. Also check Settings > Battery to see if Low Power Mode is on — turn it off if it is, because it can interfere with WiFi stability. After you change these settings, disconnect from the network and reconnect to see if the phone now stays connected.

Check for software updates on your phone

Go to your phone's Settings and look for "System Update", "Software Update", or "About Phone" — the exact location varies by manufacturer. If an update is available, read and install it. WiFi connection problems are sometimes caused by bugs in older versions of your phone's operating system, and manufacturers release updates to fix them.

After the update installs and your phone restarts, try connecting to WiFi again. If you've already tried restarting, forgetting the network, and checking distance, an update is worth trying because it may fix a known WiFi bug that the manufacturer has already patched.

Reset your phone's network settings

If none of the steps above work, reset your phone's network settings. This erases all saved WiFi networks, Bluetooth connections, and cellular settings, then restores them to factory defaults. On Android, go to Settings > System > Reset Options > Reset WiFi, Mobile & Bluetooth. On iPhone, go to Settings > General > Transfer or Reset > Reset > Reset Network Settings.

Your phone will restart and ask you to set up WiFi again. When you do, enter your network name and password carefully. A network settings reset fixes problems caused by corrupted connection data that a straightforward "forget network" step didn't catch. After the reset, your phone should connect normally. If it still won't connect after a network settings reset, the problem may be with your phone's WiFi hardware, and you should contact the phone's manufacturer or visit a repair shop.

Frequently Asked Questions

Why does my phone connect to WiFi but then disconnect after a few seconds?

Your phone is likely too far from the router or the signal is blocked by walls or metal objects. Move closer and try again. If it stays connected when close, move the router to a more central location or add a WiFi extender. If it disconnects even when close, turn off WiFi sleep mode in your phone's settings.

My phone says "can't connect to this network" but other phones connect fine. What's wrong?

Your phone has a problem with its WiFi software or hardware. Try forgetting the network and reconnecting, then check for a software update. If those don't work, reset your phone's network settings. If it still won't connect after a network settings reset, your phone's WiFi hardware may be damaged.

How do I know if the problem is my router or my phone?

Try connecting another device — a laptop, tablet, or different phone — to the same WiFi network. If it connects, the problem is your phone. If nothing connects, restart your modem and router. If still nothing connects after a restart, contact your internet service provider.

Will a factory reset fix my WiFi problem?

A factory reset erases everything on your phone and restores it to its original state. It will fix WiFi problems caused by corrupted software, but it's a last resort because you'll lose all your data unless you back it up first. Try a network settings reset first — it fixes the same WiFi problems without erasing your data.