iMac cannot connect to internet after Sequoia Update

https://support.apple.com/en-gb/102281

I clicked link for "check for related login items" and did what it said and removed the VPN logins and eset stuff and seems to have worked now.

However now I'm not sure if i reinstall eset or the VPN software it'll all malfunction again!

I think depending on our exact devices/circumstances, solutions can be a bit different for each of us. I was experiencing the same issue, where my WiFi showed “Connected” but I could not open any webpages, receive iMessages, etc. What fixed things for me was going to “Settings”>”Network”>”VPN & Filters” and setting the status of all filters/proxies from “Enabled” to “Disabled”. (I had an old VPN software installed that was listed as “Enabled” even though I haven’t used it in years.) Finally, I restarted my Mac and everything began working again.

I had a horrible day and you give me the solution, my ESET showed a notificación “it isn’t compatible with sequoia OS” but I am not realize that it was the problem with not access to internet.

the solution is “system settings/Network/Filters” select ESET filter and at the bottom click in the “-“ to remove them.. and done !!!

I had a similar problem.

i attempted all of the above with no success.

my case was that the OS was displaying that the WiFi was connected successfully but all browsers were saying I had no internet connection.

What worked for me was turning off the “Private Wi-Fi address”.

In System Settings go to Network.

On the Wifi block got to details.

In the you will see the block for Private Wi-Fi address. Turn it off.

This is not an end all solution if you prefer this security. But will give you an insight into the problem.

In my case it’s the Access Control on my router only allowing specific Mac Addresses to connect to the network and this setting was changing the address.

I hope that helps someone.

I had a horrible day and you give me the solution, my ESET showed a notificación “it isn’t compatible with sequoia OS” but I am not realize that it was the problem with not access to internet.

the solution is “system settings/Network/Filters” select ESET filter and at the bottom click in the “-“ to remove them.. and done !!!

Hello ,

Was facing the same issue & tried all troubleshooting steps including reinstalling of OS

Finally deleted the Little Snitch application VPN connection list

System settings -> Network ->

” below WiFi delete all VPN even though it’s off “ Erase VPN

Now everything worked normally

I had this issue after updating to Sequoia 15.1.1 (wifi would not turn on, System Preferences was broken, airportd was crashing on start) and was able to fix it by deleting the list of known networks:

sudo rm -rf /Library/Preferences/com.apple.wifi.known-networks.plist

then restart and all fixed!

THANK YOU AND ITS WORK..

Erase all VPN setting, go to System - Network - VPN - Erase All filters

This works for me. I had Little Snicth, I deinstall it, but when I disable it from Filters, than everything was ok.

Thank you ajs0014.

I had this problem today aft Sequoia 15.0.1 update. Network>Filters Disabled Little Snitch did it as well

All I can tell you my Firewall is still ON but Disabling Little Snitch fixed it

had the same wifi issue after upgrade....was able to resolve it by Turning on the firewall .. :)