Mac OS · macOS
Fix Wi-Fi problems on a Mac
Source-checked About 10 minutes
Answer
Check Apple's Wi-Fi recommendation, restart the network equipment, forget and rejoin the network, and use Wireless Diagnostics before changing router settings.
Check the Wi-Fi recommendation
Open Wi-Fi from Control Center or System Settings and inspect any recommendation shown for the connected network.
Test and restart
Try another network, then restart the Mac and the router or modem you control.
Forget and rejoin
In Wi-Fi settings, open Details for the network, forget it, then reconnect with the correct password.
Use Wireless Diagnostics
Hold Option while choosing Wi-Fi, open Wireless Diagnostics, and follow Apple's analysis without changing settings during the test.
Optional affiliate link
Affiliate disclosure: this preserved source link may earn Techy How a commission at no additional cost to you. A VPN does not repair Wi-Fi hardware or local network configuration.
Video walkthrough
If it does not work
- If the problem continues, note the exact error or device state and compare it with the linked Apple Support guidance before reinstalling, resetting, or deleting data.
Sources and verification
Checked against official documentation on . Scope: Current macOS.
Follow the linked first-party guidance if labels differ after a platform update.