Wifi disconnection after my Update to Monterey

Resolve Wi-Fi and Bluetooth issues caused by wireless interference

Recommended settings for Wi-Fi routers and access points

1 - Restart in Safe Mode. This will perform a Disk Repair, clear cache files and only load Apple Software, extensions and fonts. The boot up will be slow and can take some time - Normal.

2 - Does the issue present in this mode ?

3 - Sometimes a Safe Boot followed by a Normal Boot will just put things right.

4 - If not - there could be something in the main User Account playing up. To further isolate this - Set up users, guests, and groups on Mac. Then log out of the Main User account and log into the dummy account and test again if the issue persists.

5 - If the issue is present in the dummy account - then, this appears to be a System Wide issue on the computer.

Understand, we are all working Remotely from all around the world. 

Therefore, we do not have the On-Hands experience the User ( you ) has with this computer.

The next best thing for us to having a semi - actual On-Hand experience on this computer is to follow the steps below

Download the Application Etrecheck directly from a well Respected ASC Contributor. And Safe to use.

The application is free or paid from added features. 

Run the application with Full Disc Access ( Security & Privacy - Full Disc Access ).

It will take a Snap Shot -  both the hardware and software.

 The Report will Not Reveal Any Personal Information. 

Post back the Full Report - copy and paste - using the Additional Text Icon ( 3rd Icon to last )

We can have a look at the report for possible issues and may have possible suggestions to resolve the issues.

Try disabling IPv6: System Preferences -> Network -> [Select your network interface in left column] -> Advanced -> TCP/IP -> IPv6 -> Link-Local Only

At work, we have a lot of users that run into this issue, and disabling IPv6 seems to help.

If that does not work for you, you can always set it back to "Automatic"

doanejakarta wrote:

After my update to Monterey, I have experienced intermittent internet connection. My wifi connection is always disconnected either I am in my workplace or even at home. At home, I am working closer to the router and the same problem happens. What should I do?

This never happened to me before but now it is really disappointing.

Have you restarted more than once since upgrading...

Shut down or restart your Mac - Apple Support

If no resolve try a safeboot to clear cache files

—SafeBoot How to use safe mode on your Mac - Apple Support will sort many anomalies

The current stable release of Monterey including bug fixes, is macOS 12.5

Keep your Mac up to date - Apple Support

Keep your Mac up to date - Apple Support

Have you rebooted your router?