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MAC-558/559 LED 1 5 sec, LED 2 ON, LED 3 OFF

MAC-558/559 LED 1 flashes once every 5 sec, LED 2 solid ON — WPS failed

Mitsubishi Electric · Wi-Fi Interfaces

What does MAC-558/559 LED 1 5 sec, LED 2 ON, LED 3 OFF mean?

On MAC-558/559 models, LED 1 flashing slowly once every 5 seconds while LED 2 is solid ON indicates that the WPS pairing attempt has failed.

Common Causes

  • WPS pairing timed out.
  • Incorrect WPS pin or button press sequence.
  • Router's WPS feature is not enabled or not functioning correctly.
  • Interference or distance issues between the interface and router.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Reset the Wi-Fi interface to clear any previous settings.

  2. 2

    Ensure your router's WPS function is activated and press its WPS button.

  3. 3

    Initiate WPS mode on the Wi-Fi interface again, making sure to do so within the router's WPS activation window (usually 2 minutes).

  4. 4

    Consider trying Access Point (AP) mode for pairing if WPS continues to fail.

Browse all codes in this manual (19)
Verified technical data. Last updated: April 2026

Related Faults

App says 'unit was not found'App says 'unit was not found' — Wi-Fi Interface not communicating with home networkLED 1 flashingLED 1 flashing — WPS pairing in progress (MAC-558/559 models)MAC-558/559 LED 1 0.2 sec interval, LED 2 ON, LED 3 OFFMAC-558/559 LED 1 flashes 0.2 sec, LED 2 solid ON — WPS Activated (PIN)
Source: Mitsubishi Electric Wi-Fi Interfaces
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