Multiple instances of chrome in Privacy & Security - local network access

I had this same issue - as well as not being able to access local networks via IP address, like my NAS server or internet router etc..

I could access it in Safari, but could not access it in Chrome no matter what I did. Toggling any of the 10+ instances of Chrome in the Local Networks tab via Privacy & Security tab wouldn't do anything either. I tried all of the cache clearing and DNS setting/resetting, messing with IP/DNS settings, etc... to no avail.

The resolution was getting Chrome to trigger Apple to ask me to 'allow this app to access devices on your local network' and clicking 'allow'.

I followed a combination of what others have said here with success. This was my process:

1. Shut down MacBook Pro, leaving the 're-opoen windows' checkbox UN-checked
2. Hold shift, press power button, and keep holding shift all the way through until the lock-screen
3. Sign in
4. Open Finder > Applications Folder
5. Right click "Google Chrome" and click the trash icon (delete chrome) - it should now be in your trashcan
6. Open trash can, click empty trashcan
7. Open Terminal (press command + spacebar and type 'Terminal' and hit enter - it should open)
8. Without typing anything else, enter the following command without the parenthesis: "sudo tccutil reset SystemPolicyNetworkVolumes" and hit enter
9. You should be prompted on the next line to enter your password - enter your password that you log in to your computer with and hit enter (you should get a success notification on the next line down)
10. Before restarting; Open System Settings > Privacy & Security > Local Network - you should not see any instances of 'Google Chrome' in here anymore
11. Close out of everything, and hit Apple Icon (top left) > Restart... and restart again leaving the 're-open windows' checkbox UN-checked
12. Log in like normal, and repeat step 10 above - you should still not see chrome on this list
13. Open Safari, and re-download Google Chrome following instructions once opening download file
14. Eject the Google Chrome install media on your desktop
15. Open/launch Chrome - you should still be logged into your chrome profile (if you aren't then don't worry about logging back in yet)
16. Try to access your Router or other local network device via IP address/domain
17. **WAIT (do nothing)** until Apple/MacOS notification pops up and asks if you want to allow Google Chrome to access devices on your local network
18. CLICK ALLOW for the love of all things good
19. If you're a dingus and failed to click allow then start back at step one; Otherwise continue on to step 20
20. Repeat step 10 above - you should see only one instance of Google Chrome with the toggle turned on.
21. If that's all you were seeking to accomplish then congrats - you did it! Otherwise continue to step 22:
22. Enjoy accessing your local networks without issue

This is absolutely an Apple bug that needs to be fixed. For reference I am on a 2020 M1 MacBook Pro (base model) running Sequoia 15.5 displaying 'up to date' post-checking for updates, and running the latest version of Chrome (Version 137.0.7151.56 (Official Build) (arm64)). Note that I was up to date on both MacOS and Chrome when the issues were originally happening as well.

Everything is finally working - I'm sure I declined the Apple/MacOS notification originally, which initiated these issues. But that again shouldn't mean that the toggle in MacOS settings won't work/do anything/add a plethora of worthless instances of Chrome within the local network settings.

Hope this helps someone else who has spent hours banging their head on the counter whilst trying to setup a new NAS or other network device like I have been.

Good luck.