Mac Won't Connect to Wi-Fi? Try These Fixes in Order

The 60-second checks first

Confirm Wi-Fi is on: click the Control Center icon in the menu bar and check the Wi-Fi toggle. Make sure you are joining the right network name — neighbors' networks with similar names cause more confusion than you would think. Then restart your Mac, and restart your router too (unplug it for 30 seconds). This pair of restarts resolves a surprising share of Wi-Fi complaints by itself.

While the router restarts, check whether other devices — your phone, a tablet — can use the same Wi-Fi. If nothing connects, the problem is the router or your internet service, not the Mac.

Forget and rejoin the network

A saved password or setting can go stale, especially after the router's password changes. Open System Settings, Wi-Fi, click Details (or the network name), and choose "Forget This Network". Then rejoin it from the Wi-Fi list and type the password fresh. If it connects now, you are done.

Renew the DHCP lease

Your Mac borrows a network address from the router; sometimes the "borrow" goes wrong. In System Settings, go to Wi-Fi, click Details next to your network, choose TCP/IP, and click "Renew DHCP Lease". Give it a few seconds, then test a web page. This fixes many cases of "connected to Wi-Fi but no internet".

Check for captive portals and date problems

Two sneaky causes: hotel-style login pages that never appeared (open a browser and try visiting a plain page like example.com to force the login screen), and a wrong system date, which breaks the security certificates secure sites rely on. Check System Settings, General, Date & Time, and turn on "Set time and date automatically".

Create a fresh network location

macOS keeps network settings in "locations", and a corrupted one causes stubborn problems. In System Settings, open Wi-Fi, click the three-dots or "Locations" menu (via Edit Locations in older macOS versions), and add a new location. This gives you clean network settings without touching anything else. Rejoin your Wi-Fi and test.

Rule out interference and updates

If the connection works but keeps dropping, move closer to the router to test for range or interference issues — thick walls and microwave ovens genuinely disrupt Wi-Fi. Then check System Settings, General, Software Update: Apple ships Wi-Fi fixes inside macOS updates, and running an old version can mean living with a bug that is already fixed.

When it is still not connecting

If none of the above works, the remaining suspects are the router's security settings (some older routers clash with modern Macs), a failing Wi-Fi card, or a deeper software fault. A technician can tell which one it is quickly — and router-side fixes are usually free once identified. Pro PC Support helps with Mac Wi-Fi problems remotely: call +1 888-406-8086 or request support online.