Update to 27.2.1 causing WiFi issues.

Hello,

I updated from MacOS 27.2 to 27.2.1 (MacBook Air M3 16GB) and started experiencing issues with WiFi. Specifically, latency increased and I saw significant packet loss using ping. Many websites didn't load at all in Safari and the Speedtest app could not connect to a server. I also got several alerts about Private Browsing being disabled.

I rebooted and flushed DNS caches and nothing changed.

I was able to use my phone as a hotspot and that performed well. Now I am on a wired Ethernet connection and that works fine, too.

Any help would be appreciated.

Posted on Nov 10, 2026 4:33 PM

2 replies

MrHoffman

Level 10 (169,253 points)

Nov 10, 2026 4:35 PM in response to Justin Gallivan

If you have any add-on VPN apps installed, remove all, restart, and try again. Remove, as disabling isn’t always reliable.

Justin Gallivan Author

Level 1 (5 points)

Nov 10, 2026 4:40 PM in response to MrHoffman

Thanks. I haven't run a VPN in years but there is a disabled config in Settings/VPN. Will delete and reboot.