Every time my new macbook air wakes up the wi-fi connection doesn't automatically connect even though I set it to auto connect

After trying many things, this solution worked for me.

Edit:

bc my comment isn't shown in context with the solution that I was replying to, I'm copy/pastying the relevant text here (edited slightly for readability).

Thanks to idrisser

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Apr 6, 2015 7:45 PM in response to RonMarion

Had the same problem and called Apple Support this morning, which seemed to have fixed my problem. Here is what I did:

1. Switch off your mac, plug in the charging cable.

2. Press Shift-Control-Option keys and the power button at the same time. The light on the charging cable should change (Green to Orange or vice-versa). This will reset the hardware of the System Management Controller.

3. Then instead of switching on the mac directly, reset the memory where network info is saved: Switch on your mac, and then immediately press Option, Command (⌘), P, and R (all 4 buttons at the same time), keep them pressed until you hear a 2nd startup sound, then you can release.

4. Once your mac is back on, we remove the wifi network in the preference, and then we reconnected to it once again (just enter the password)

Hope this helps.

Just purchased 2016 MacBook Air. OS (10.12 Sierra).

Does not auto discover my primary WiFi upon awakening.

I tried all the fixes.

Only one that works is to switch off Bluetooth.

Cannot believe this problem has been occurring since 2014.

Why doesn't Apple provide an update fix?

Just installed MacOSSierra V10.12 and the wifi would not reconnect when the MacBook Air woke from sleep. The solution stated fixed it. Very easy and very quick to do.