WiFi fluctuating between on and off

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MacBook Pro 13" Retina Display Mid 2014

Model A1502 / 2.6 GHz (Turbo Boost up to 3.1 GHz) or 2.8 GHz (Turbo Boost up to 3.3 GHz) dual-core Intel Core i7 processor with 4MB shared L3 cache.

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Chandrakant @ckk

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WiFi fluctuating between on and off

Earlier today, the WiFi connection on my MacBook Pro decided to randomly switch off and then switch on again on its own. I was on a skype call and in the background was running both the chrome and safari browsers. The WiFi connecting has been toggling back and forth every 2 seconds when ever the laptop is switched on. And it has been doing this for the past 8 hours.

It’s not a router issue cause other devices including another older MacBook Pro from mid 2009 is connecting fine.

A malware scan came back negative. Can someone please suggest how to go about finding out what’s causing this and how to go about fixing it? Thank you.

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Zach @zpl Репутация: 4,4к 8 12 3 · Answer 1 · 2020-07-02T12:28:28-07:00

Zach @zpl

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If you think the issue is software related, I would recommend reinstalling the OS. It’s possible though, that this is due to a failing AirPort card. See this guide for replacement steps. If you have a kind friend or know somebody with the same model MacBook Pro, you can try installing their AirPort card to see if this resolves the issue.

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score 0 · Answer 2 · 2020-07-02T17:58:32-07:00

Dan @danj

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The AirPort board tends to fail hard, not sporadically.

The area I focus on in this series is the I/O cable connection which tends to breakdown. See if reseating the cable as well as the AirPort card helps other wise you’ll need to replace the I/O Data Cable

The other area I find is the antenna cables get damaged at the hinge area from all of the lid movement, which is a big job as you need to take the display fully off MacBook Pro 13" Retina Display Mid 2014 Display Assembly Replacement and here’s the needed part 13” MacBook Pro - Right Hinge, Antenna/iSight cable