If Wi-Fi appears to be turned off and you cannot switch it back on, the problem may be a simple setting, keyboard shortcut, driver fault or wireless adapter issue.
This is usually a computer-side problem, not a broadband provider problem.
Check the obvious switches first
Run through the safe checks before you spend money, reset devices or start changing settings you may need later.
- Turn airplane mode on and off.
- Look for a keyboard Wi-Fi key or physical switch.
- Restart the computer fully.
- Check whether any Wi-Fi networks are visible.
- If using a USB Wi-Fi adapter, try another USB port.
If your problem is slightly different
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Get this fixed
Wi-Fi help
On-site Wi-Fi diagnosis and fixes across Ayrshire. Weak signal, dead spots, dropouts, router setup, mesh systems and connected-but-no-internet faults.
Wi-Fi connected, no internet
A practical guide for the classic connected-but-no-internet problem, with clear signs of when it needs an Ayrshire home visit.
Laptop Wi-Fi problems
Help when one laptop will not join Wi-Fi, keeps dropping out, or says it is connected but still has no internet.
Official references worth checking
Ofcom: broadband speeds and minimum guarantees
Useful when the line itself is underperforming and you need to know what your provider should investigate.
Openreach: checks for fibre ONT boxes
Helpful for full-fibre homes with an Openreach ONT, especially when PON or LOS lights are involved.
BT: factory resetting a BT Hub
Confirms what a factory reset does and why it is different from a normal restart.
Some laptops have hidden Wi-Fi toggles
On many laptops (especially older Dell, HP, Lenovo, and ASUS models), Wi-Fi can be disabled accidentally via a physical slider switch on the side edge or a keyboard function key combination (such as Fn + F2, Fn + F5, or Fn + F12).
When this physical or keyboard lock is engaged, Windows will display the wireless adapter status as 'Off' or 'Disabled' and will grey out the Wi-Fi toggle in your taskbar notification centre.
Check the function key row for a radio tower or airplane symbol. Pressing Fn along with that key—or toggling physical switches—is often the quickest fix before altering system settings.
Driver faults can make Wi-Fi disappear
Following a major Windows 10/11 update or unexpected system shutdown, wireless network card drivers can become corrupted or disabled by Windows Power Management settings.
To check your network adapter, right-click the Start menu, select Device Manager, and expand the 'Network adapters' section. Look for Intel, Realtek, or Qualcomm Wi-Fi adapters. If a small down-arrow icon appears over the card, right-click it and select 'Enable device'.
If an exclamation mark appears, right-click and select 'Uninstall device', then restart your laptop to force Windows to re-detect and reinstall the clean factory network driver.
- No networks visible: wireless adapter disabled, missing driver, or physical switch off
- Networks visible but cannot join: cached network credentials or security protocol mismatch
- Connected but no internet: DNS resolution error, static IP binding issue, or router failure
When hardware failure might be the issue
Internal Wi-Fi mini-PCIe cards inside laptops can occasionally suffer hardware failure due to overheating, loose antenna cables, or power surge damage.
If Device Manager fails to list a wireless adapter entirely—even after clicking 'Scan for hardware changes'—the internal wireless module may need hardware replacement or reseating.
As an immediate, low-cost workaround, an external USB Wi-Fi dongle (costing £10–£15) can get your computer back online instantly while deciding whether to book an internal repair.
Avoid deleting adapters without a recovery route
Removing the wrong network device can leave you with no easy internet connection to reinstall it.
Quick questions
Why did Wi-Fi disappear from my laptop?
It may be airplane mode, a disabled adapter, a driver problem, update issue or hardware fault.
Can this be fixed remotely?
Sometimes, if the computer can get online by ethernet or another method.
Is my router causing this?
Usually not if the computer cannot see any Wi-Fi networks at all.
Maintained by
Graeme Tudhope, Ayrshire Tech Help
Graeme has been repairing computers, fixing Wi-Fi and helping Ayrshire homes and small businesses since 2008. Every article is based on real problems seen during local home visits, bench repairs and remote support sessions, with advice written to protect files, money and time before anyone books paid help.