Tahoe 26.0.1 MacBook Pro M3 Max - no internet

Check System Settings->Network

Select the service you are using (Wifi, Ethernet, … ) and click Details…

In particular a green button indicates that the service is connected; not being able to access any sites suggests a possible DNS problem. Select DNS and show us what you see: a grey address is one provided automatically and should work; a black one (or white if using dark mode) iscone entered by the user.

One possible workaround to this issue is to create a new Network Location. In System Settings > Network, click the ••• / down caret at the bottom of the preference pane, then select Locations > Edit locations. Click the (+) button, give the location a name (you can delete it or rename it later), and see if that corrects the issue.

[Edited by Moderator]

Another user found the Little Snitch app was causing the issue if you use that

Hi, I've the same issue since I upgrade macOS 26.0.1 on my MacBook Pro M4 Pro. my Wifi is disconnecting every few minutes and especially when I use a lot the bandwidth for activity like big files download.

please Apple, fix it ASAP !

this didn’t work for me, having the exact same issue as OP. I also do not have the little snitch app. Comnectivity was fine prior to the update, and now it’s gone, even with a tethered usb connection