3 Things to Check Before Blaming Your MacBook Air for Wi-Fi Problems
Regarding the MacBook Air: 1. Restart your router and modem Unplug both for 30 seconds, then plug them back in. This fixes most Wi-Fi issues on any device.
Check for network congestion Too many devices on the same band or interference from neighbors can cause drops. Try switching to the 5GHz band if your router supports it.
Update your router’s firmware Outdated router software is a common cause of intermittent disconnects. Check your router manufacturer’s app or admin page for updates.