Start by finding out whether the problem is the computer or the network. If every other device connects, the computer is more likely the issue. If nothing connects, look at the router or internet service.
Common causes
- The saved Wi-Fi password is wrong or outdated.
- The wireless adapter is disabled or has a driver problem.
- The router was replaced and the old network profile is still saved.
- The signal is too weak where the computer is located.
What you can try first
- Forget the Wi-Fi network and reconnect with the current password.
- Restart the computer and router once.
- Check whether other devices can connect to the same network.
- Move closer to the router for one test.
When to stop guessing
Get help if the Wi-Fi option disappears, the adapter shows an error, only one computer fails, or the connection drops often after it connects.
How this fits local homes and small businesses
We can check the computer, wireless adapter, saved network settings, and router path instead of changing everything at once.
Keep the next step simple
Write down what happened, what changed, and any error message you see. That gives us a better starting point and keeps the repair focused.