If Android does not connect to Wi-Fi, the phone may show "Network unavailable", "Authentication error" or constantly lose connection. The main reasons are problems with the router, network settings, or drivers.
Below are quick solutions.
Method 1: Restart Wi-Fi and phone
- Turn off the Wi-Fi on your phone for 10 seconds
- Turn it on again
- Restart the device if necessary.
Method 2: Password and Network verification
- Make sure you enter the correct password
- Check if the network is visible to other devices.
- Try deleting the network and reconnecting
Method 3: Reset Network settings
- Open Settings → System → Reset → Reset Network Settings
- Confirm the action
- After restarting, try connecting to Wi-Fi again
Method 4: Checking the router
- Restart the router
- Update the device firmware
- Make sure that there are no restrictions on MAC addresses.
Additional reasons
- Old Android version or firmware bug
- Conflicts with VPN
- Problems with Wi-Fi drivers
Bottom line
Resetting network settings and reconnecting often helps. If the problem persists, check your router and Android updates.