Symptoms
- Wi-Fi shows as available but won't connect
- Connects but has no internet access
- Keeps disconnecting and reconnecting
Likely causes
- CommonSaved network settings are outdated or corruptedA password change or router reset can make old saved settings fail silently.
- CommonRouter or modem issue rather than the tabletOther devices having the same trouble points to the network, not the tablet.
- CommonWi-Fi radio needs a reset via airplane mode or restartA stuck wireless radio is a frequent, simple-to-fix cause.
- PossibleRouter incompatibility with an older tablet's Wi-Fi standardVery old tablets may not support newer router security or band settings.
What to do
- Toggle airplane mode on and off, or turn Wi-Fi off and back on.
- Forget the network in Wi-Fi settings, then reconnect and re-enter the password.
- Restart the tablet and separately restart the router/modem.
- Check whether other devices can connect to the same network to rule out a router-side issue.
- Move closer to the router to rule out a weak signal causing connection failures.
- If only this tablet fails to connect while others work fine, check for a pending software update or reset network settings.
When to call a pro
If the tablet still can't connect after a network settings reset and other devices connect fine, a repair shop can test the Wi-Fi antenna hardware.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.