Macbook m2 air won't connect to 5G wifi AFTER 15.3.1 update!

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Level 1

5 points

Macbook m2 air won't connect to 5G wifi AFTER 15.3.1 update!

Hello everyone,

I reinstalled macOS on my MacBook, and before the update, I was able to connect to my 5GHz hotspot.

Then, macOS prompted me to upgrade to version 15.3.1, and it remained connected to my 5GHz hotspot.

However, just as the 15.3.1 update began installing—and right before my MacBook turned off to continue the installation—it disconnected from my 5GHz hotspot. After the update was installed, my MacBook can no longer find any 5GHz Wi-Fi networks.

Is this a new "feature" to force users to buy new products?

I also noticed that I was able to switch my hotspot to a 5GHz network during the macOS reinstallation. Until then, it had always been connected to 2.4GHz. So, during the installation, I canceled it, switched my hotspot to 5GHz, and restarted the reinstallation. This upgrade significantly increased my download speed—from 25-30 Mbps to 150-200 Mbps (as tested in Safari on the setup options page).

MacBook Air (M2, 2023)

Posted on Mar 10, 2025 10:04 AM

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Answer 1

Uriel9 Author

Level 1

5 points

Mar 10, 2025 10:32 AM in response to Uriel9

I launched my MacBook into the options menu, and there, my 5GHz Wi-Fi appeared, and I was able to connect to it. However, after restarting my device, I can no longer find my 5GHz Wi-Fi, even though it still appears in the options menu. This confirms that it's not a hardware issue but a software issue.

Can not find the 5g hotspot...

On the recovery page it shows up.

Mobile hotspot is on

Last Edit:

I've discovered that if my hotspot is turned on when I restart my MacBook, it connects to it automatically. However, if I turn my hotspot off and then on again, my MacBook can no longer find it.

The same issue occurs if I connect to another network—my 5GHz Wi-Fi disappears and is no longer detected.

Additionally, if I turn off Wi-Fi on my MacBook and then turn it back on, the 5GHz network no longer appears.

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