Android won't connect to WiFi — authentication error
Your phone's saved WiFi password doesn't match what the router is expecting. Forgetting the network and reconnecting with the correct password creates a fresh saved entry and fixes this for users.
Your phone saves WiFi passwords so you don't have to type them every time. But if the router password changed or the saved entry got corrupted, your phone keeps trying with the wrong credentials and fails. Forgetting the network removes the bad entry so you can save the password correctly.
- ✓Have the current WiFi password ready — check the router sticker or ask the network owner
- ✓Make sure mobile data is enabled so you can still use the internet while troubleshooting
- ✓Stay within range of the WiFi router while testing
Fix-IT-Bot will walk you through each step, just tap, no typing needed.
Skip, I just want a technicianCommon mistakes to avoid
- Trying to connect multiple times with the same wrong password instead of forgetting the network first
- Not realizing passwords are case-sensitive and have special characters
- Assuming the router is broken when the real problem is the saved WiFi entry on your phone
Signs you need professional help
- Phone connects but shows no internet access despite the password working on other devices, authentication fails with the confirmed correct password, or multiple WiFi networks won't let this phone connect
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