Deleted Wi-Fi Interface, Unable to Add it Back

You may be correct: the Wi-Fi card may be damaged.

Before you bring your Mac for repair, try the following:

1. Do a PRAM reset: Reset NVRAM or PRAM on your Mac - Apple Support
2. Do an SMC reset: How to reset the SMC of your Mac - Apple Support
3. Restart in Safe Mode: How to use safe mode on your Mac - Apple Support

And please see the following discussions:

1. https://discussions.apple.com/thread/7903262
2. https://discussions.apple.com/thread/7335755

I have seen some other discussions about resetting the Wi-Fi network, e.g. Method #2 in https://macreports.com/how-to-reset-network-settings-on-mac/, but that seems a little drastic and I have no experience in doing this and as such, I cannot recommend them.

1. Open System Preferences
2. Click Networks
3. In the sidebar (left-pane), click the + button
4. In the popup window, under Interface, select Wi-Fi
5. Under Service Name, type Wi-fi (or any other name would would prefer)
6. Click Create

Now select the Wi-Fi option in the side bar and enter the credentials for it.

I’m having the exact same issues except when I click the plus sign to add WiFi back, and then the drop down menu for “interface,” WiFi isn’t an option. I only see Thunderbolt Bridge, TB 2, TB 1, Bluetooth PAN, VPN, PPPoE, and 6to4. Any help would be appreciated!

Some context, wife dropped our old (2012) MacBook Pro and now it won’t connect to wifi, other devices are connected so it’s not the network. I tried removing Wifi in the left hand pane, restarting, and then adding again (as recommended in another discussion) and now I’m in the Network

Settings trying to add Wifi back, but to no avail. I’m wondering if it’s something with the internal wifi card since it was dropped? Thanks for any help.