Post actualizado el día octubre 24, 2026 by DeiviSanzPlay
When Windows 10 stops seeing the Wi-Fi or connects but without internet access, the cause is usually one of these four areas: the wireless card disabled, a corrupted driver, a damaged network profile, or an IP address conflict. Before touching anything, check whether the problem affects only your computer or all the devices in the house; if your phone browses on the same network, the fault is local.
Step 1: check the adapter in Device Manager
Open Device Manager with Win + X and expand Network adapters. If the Wi-Fi adapter appears with a yellow triangle, there is a driver error. If no wireless adapter appears, look in View > Show hidden devices: it is common to find the card listed as disabled after a failed update.
A specific case that recurs on machines with Intel AX200 cards is that the adapter disappears completely from the list after the computer wakes from sleep. In those cases, a full shutdown and power-on (not a restart) forces the device to be re-enumerated on the PCIe bus and usually brings it back.
Step 2: reset the network stack from the command line
Many connection failures are resolved by clearing the accumulated network configuration. Open the command prompt as administrator and run the following in this order:
- netsh winsock reset
- netsh int ip reset
- ipconfig /release
- ipconfig /renew
- ipconfig /flushdns
Restart after the first two commands. This procedure does not erase saved passwords, but it does remove any custom static IP configurations you had assigned: write them down beforehand if you use them.
Step 3: delete the profile and reconnect
A corrupted profile is a frequent cause when the network appears as «no internet connection» even though the router is working. Go to Settings > Network & Internet > Wi-Fi > Manage known networks, select your network and click Forget. Reconnect by entering the key. If Windows 10 rejects the password you know is correct, temporarily change the router’s security type to WPA2-PSK (AES); some older adapters fail with WPA3.
Step 4: driver and power-saving settings
In Device Manager, open the adapter’s properties, Power Management tab, and uncheck «Allow the computer to turn off this device to save power.» This setting causes intermittent disconnections on laptops. For the driver, first try the one offered by the chip manufacturer (Intel, Realtek, Qualcomm Atheros) instead of the generic one from Windows Update; the latter prioritizes stability over features and sometimes breaks 5 GHz network detection.
Step 5: diagnostics when none of the above works
Run the Network troubleshooter from Settings; restart the WLAN AutoConfig service (services.msc) if it is stopped. Also check that Group Policy is not blocking the connection: on company machines it is common to find restrictions that prevent connecting to non-corporate networks.
It is worth being honest about the limits of these guides: if the adapter does not appear even in Device Manager after a full restart, it is most likely a physical failure of the card or the internal antenna, and no software setting will fix it. In that scenario, a dual-band USB Wi-Fi adapter is the quickest solution, although it adds latency compared with the internal card and does not always allow you to use features such as WoWLAN.
According to Microsoft’s official documentation, persistent connection errors after these steps should be reviewed with the system event logs, filtered by the WLAN-AutoConfig source, which indicate whether the failure is in authentication or in association with the access point.
