MacBook Pro won't connect to Wi-Fi, with correct password. Error: "The Wi-Fi network requires a WPA2 password"

I'm trying to connect to my home Wi-Fi. When I enter the correct password, I get the message

The Wi-Fi network requires a WPA2 password

I verified the password is correct in my router configuration.

I am using a 2017 MacBook Pro, running macOS Mojave 10.14.2.

I restarted my modem/router combo, restarted my MacBook, tried removing the home Wi-Fi and re-adding it (under System Preferences → Networks → Advanced → Preferred Networks), and changed the Wi-Fi password. Nothing works. My Wi-Fi name (SSID) doesn't have any special characters either.

I have another 2015 MacBook Pro and an iPhone that can connect to my home Wi-Fi with no problems. So, it seems issue seems to be particular to this device (the 2017 MacBook Pro) in combination with my home network. This device has no problems connecting to other Wi-Fi networks (it works successfully at my office, at the airport, other homes, etc.)

How do I resolve it?

Solution 1:

I had the same issue like you and I found a solution. In my case I have connected a USB 3.0 hub to my 2018 Mac mini, so macOS adds this hub like other network settings.

If you disconnect you hub or another device that macOS detects like a network port, the WiFi works fine, but to remain connected with the hub or some device, go to System Preferences/Network and set inactive the devices that show this window (USB, Hub, Thunderbolt, etc.), and with this now my WiFi works fine.

Solution 2:

I just had the same issue. The answer I found online said to go to system preferences, then network, then click advanced and then click TCP/IP and click the Renew DHCP Lease; but I don't think that did anything.

However, instead of clicking TCP/IP, stay on the Wi-Fi page (or go back to it by clicking the tab) and click the + button to add the network. You need the network name and password, and for security I chose WPA2 personal. Apply or Click OK and that should do it. It worked for me and now I get connected automatically.

Solution 3:

I don't know if you've resolved your issue but this is how my problem was resolved.

I have a BT Homehub router so the settings (in "advanced" tab) allowed me to 'separate' the 2.4GHz and 5GHz channel settings which resulted in 2 SSIDs being visible on the network. The 5GHz channel was recognisable from the addition of "-5" being added to my original SSID. I connected to the 5GHz channel without any problem.

It seems my issue was an inability for my MacBook air to connect to the 2.4GHz channel.

Hope it works for you too!