new mac air

Hi meegan54,

For help with connecting to Wi-Fi you may need to consult your Wi-Fi router manufacturer before making changes. However, the information below found in the article here has details on why you may be seeing the alert. Recommended settings for Wi-Fi routers and access points - Apple Support

"Weak security settings to avoid on your router

Don't create or join networks that use older, deprecated security protocols. These are no longer secure, they reduce network reliability and performance, and they cause your device to show a security warning:

• WPA/WPA2 mixed modes
• WPA Personal
• WEP, including WEP Open, WEP Shared, WEP Transitional Security Network, or Dynamic WEP (WEP with 802.1X)
• TKIP, including any security setting with TKIP in the name

Settings that turn off security, such as None, Open, or Unsecured, are also strongly discouraged. Turning off security disables authentication and encryption and allows anyone to join your network, access its shared resources (including printers, computers, and smart devices), use your internet connection, and monitor the websites you visit and other data transmitted over your network or internet connection. This is a risk even if security is turned off temporarily or for a guest network."

There are also helpful steps you can test here: If your Mac isn't connecting to the internet over Wi-Fi

If you need further assistance checking or changing your settings, connect with Apple directly to assist.

Get Support

Cheers.