My computer repeatedly disconnects from Wi-Fi and reconnects, but even when Windows says it is connected, I often cannot access the internet. Sometimes the Wi-Fi adapter will not show any available networks until I disable it or update the driver through Device Manager. What could be causing this, and what troubleshooting steps should I try?
2 Answers
The disappearing Wi-Fi networks suggest a problem with the computer’s wireless adapter or driver rather than just the router. First, check whether other devices can use the same Wi-Fi. Then connect the computer to a phone hotspot: if it fails there too, the adapter or driver is the likely cause; if the hotspot works, investigate the home router and compatibility settings.
Download the correct Wi-Fi driver from the computer or motherboard manufacturer. Uninstall the wireless adapter in Device Manager, remove the driver if Windows offers that option, restart, and install the downloaded driver. Also open the adapter’s Properties > Power Management and disable “Allow the computer to turn off this device to save power.”
You can generate more information with `netsh wlan show wlanreport`. The resulting Windows report lists recent connection failures and may identify the cause. Avoid reinstalling Windows or resetting the router until these checks are complete.
There are not enough details yet to determine whether the router, internet service, or computer is responsible. Check the exact computer model and wireless adapter name, the signal strength, whether the problem started after a change or update, and whether other devices remain online. Restart the modem and router, and try a different Wi-Fi channel if the issue affects multiple devices. As a temporary test, connect the computer to the router with an Ethernet cable; if wired internet works reliably, focus on the Wi-Fi adapter, driver, signal, or router wireless settings.
While the computer says it is connected but has no internet, run `ipconfig` and note the Default Gateway. Ping it with a command such as `ping 192.168.1.1`. If the gateway does not respond, the issue is between the computer and the Wi-Fi network. If it responds but websites still do not load, the problem is farther upstream.