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CompTIA

220-802 · Question #734

A laptop user reports that they cannot see the SSID or connect to their company's wireless network. Which of the following should the technician try FIRST?

The correct answer is C. Check the wireless on/off switch. When a laptop cannot detect any wireless networks, the simplest and most likely cause is a physical wireless on/off switch being in the off position. Checking physical controls before software settings follows the principle of starting with the simplest solution.

Hardware and network troubleshooting

Question

A laptop user reports that they cannot see the SSID or connect to their company's wireless network. Which of the following should the technician try FIRST?

Options

  • ACheck the wireless settings in the OS
  • BReplace the internal wireless adapter
  • CCheck the wireless on/off switch
  • DCheck the signal strength

How the community answered

(31 responses)
  • A
    3% (1)
  • B
    6% (2)
  • C
    87% (27)
  • D
    3% (1)

Why each option

When a laptop cannot detect any wireless networks, the simplest and most likely cause is a physical wireless on/off switch being in the off position. Checking physical controls before software settings follows the principle of starting with the simplest solution.

ACheck the wireless settings in the OS

Checking OS wireless settings is a valid step but should come after verifying the physical switch, as a hardware-disabled adapter cannot be enabled through software alone.

BReplace the internal wireless adapter

Replacing internal hardware is an invasive, expensive step that should only be done after exhausting simpler troubleshooting options.

CCheck the wireless on/off switchCorrect

Many laptops have a physical toggle switch or keyboard shortcut (Fn key combination) that enables or disables the wireless adapter at the hardware level. If this switch is off, the adapter will not transmit or receive signals, making all SSIDs invisible regardless of OS settings, making it the first item to check.

DCheck the signal strength

Checking signal strength is irrelevant if no SSIDs are visible at all, which indicates the adapter is not active rather than a signal problem.

Concept tested: Laptop wireless hardware enable/disable switch

Source: https://support.microsoft.com/en-us/windows/turn-wi-fi-on-or-off-in-windows-e5f86b6b-678c-3fe5-4ca3-3fb8e2a4d7f2

Topics

#wireless troubleshooting#SSID#wireless adapter#hardware switch

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