Chrome not able to access local network, LNP issue

I was able to fix the problem, but there is no guarantee that it will not come back. After further researching I found this and it does reset LNP. This will remove all of the double entries and reset Chrome so it will ask to allow access to devices on my local network. Hope it helps others.

1. Start up your Mac in recovery mode
2. Disable SIP by opening terminal (in menu bar under utilities) and enter crsutil disable at the prompt
3. Reboot
4. Delete the following files
   1. /Library/Preferences/com.apple.networkextension.plist
   2. /Library/Preferences/com.apple.networkextension.uuidcache.plist
5. Reboot
6. Relaunch Chrome and verify you are prompted (remember to answer yes, ;-)) and local network in settings is clean with a single entry
7. Shutdown and start up Mac in recovery mode
8. Enable SIP by opening terminal (in menu bar under utilities) and enter crsutil enable at the prompt
9. Reboot

Please use if you are comfortable with how the OS works, but use at your own risk. Hopefully Apple/Chrome will address issues in upcoming releases.

This is how I manage to fix it.

1. Close completely Google Chrome, I've made it by forcing
   1. Cmd + Option + Esc
   2. Select Google Chrome from the list
   3. Force quit
2. Got System Settings -> Privacy & Security -> Local Network
3. Uncheck any of the Google Chrome slides, that will uncheck all at once
4. Uncheck also Google Chrome Helper (GPU)
5. Enable again any Google Chrome and Google Chrome Helper
6. Open Google Chrome and navigate to any local address
7. The popup will appear to ask again the permissions

I tried all the remedies and they failed.

I even tried the chrome://flags/#local-network-access-check

Which had not been mentioned.

What did work:

1) go to chrome://flags

2) click the "Reset All" button at the top right and relaunch Chrome

3) Quit Chrome, wait 30 secs for the Chrome Helper to also quit

4) Launch Chrome and go to a local site - it finally asked me to enable again.

I now have FOUR chromes in my Privacy & Security : Local Networks - sheesh!

But at least it works again.

I tried this but it didn't work. What I found worked for me was completely quitting Chrome (I just force-quit it), then toggling off the slider for one of the many Chromes in System Settings => Privacy and Security => Local Network, then toggling the slider back on and reopening Chrome.

I just upgraded Chrome to a new version yesterday and found that it was no longer able to access the local network, and given how many entries there are for Chrome in the Local Network settings, I wonder if each time it updates it adds a new entry, but doesn't seem to retain the permission. I didn't look through the list of all the Chromes to see if one was off before flipping one of the ones that was already on.

Ok guys, I have read through the solutions and as I am having not so much knowledge as some please allow me to write a conclusion / solution with all steps... as some of you are deeper into terminal and required prompts etc... I missed some steps as user not so experienced in terminal usage.

So this worked for me on my M2 Mac Studio ... All steps:

Shut Mac down

restart holding the power button until you see the following screen:

select: Options

Next

select your username

type in Password

on the next screen in the top menu select tools now select Terminal

type in the terminal window: csrutil disable

Enter

type in your mac password

Now reboot mac

Start Terminal.app

type: sudo rm -R /Library/Preferences/com.apple.networkextension.plist
type: sudo rm -R /Library/Preferences/com.apple.networkextension.uuidcache.plist

restart your mac

Now open Google Chrome app
when asked allow connecting to your network
It should work hopefully!
Now go to syytem preferences -> privacy & security -> local Network
All entries except for one google entry (enabled) should be deleted

Shut down your mac
restart holding the power button until you see the following screen:

select: Options
Next
select your username
type in Password
on the next screen in the top menu select tools now select Terminal
type in the terminal window: csrutil enable
Enter
type in your mac password

Now reboot mac
That should be it...
Hope this helps

I tried all the suggestions but none worked for me. This however did work:

1. Go to System Settings > Private & Security > Local Network. Make sure all the Chrome entries are enabled
2. On a new Chrome tab go to: chrome://flags/#use-network-framework-for-local-discovery
3. Change the Use the Network Framework for local device discovery on Mac from Default to Disabled and re-launch Chrome
4. Access the web site on your local network. Very that you now have access.
5. Restore the Use the Network Framework for local device discovery on Mac setting to Default

thanks. I renamed "Google Chrome" to "Google Chrom", then visited a local page and answered "yes". It worked. I quitted Chrome, renamed it to "Google Chrome", and it's still working. Uf.

I'm having the same issue and situation as the OP.

As a workaround, I downloaded the Chrome Beta ( https://www.google.com/chrome/beta/ ). The beta version is seen by MacOS as a different app. During launch, it asked for local network access to which I approved, and I can now access local network services. This is only a workaround.

I'll try the Luv2ride11 solution if the Beta stops working as well.

try enable or disable this chrome://flags/#local-network-access-check, you can get notification to allow chrome to discover local network

source: https://developer.chrome.com/blog/local-network-access

I've verified this sequence works.

1) Force Quit Chrome (Apple Menu, force quit, choose chrome)

2) Disable chrome from Apple Menu, Privacy & Security, Local Networks, by sliding Google Chrome to off

3) Restart chrome, and go to local address verify the error

4) Force Quit Chrome again.

5) Reverse second step and re-enable Google Chrome

6) Restart Chrome and "Allow" access if asked to local addresses sought

Rebooting in recovery mode, disabling SIP, deleting the two files in Library/Preferences per Luv2ride11's post is the only thing that worked for me.

Fixed Vivaldi, too.

PITA, but a Lifesaver.

Thanx

Edit: I misread the main post. This fixed my issue, but likely isn't the issue you're all seeing. I can't delete this post so unfortunately it has to stay.

Just in case anyone comes across this and needs the answer.

Go to System Settings => Privacy and Security => Local Network

You should see that the slider for Chrome is unset. Go ahead and set it to enable local network access again.

You don't need to reboot or restart your browser for it to work.

This is mind boggling. I have accidentally said 'no' one of the times I saw this message about Chrome needing permissions to access the local network. I didn't think of it much, as I know this question appears constantly (after each update to Chrome in fact and Google seem to update their browser for unknown reasons almost weekly) End of the day its the same browser we put up with, since it seems to be used by many other people! Once I said 'no' there is no force on earth able to reverse this decision. Absolutely amazing how Apple builds software nowadays. You can toggle all the instances in Chrome in your Privacy & Security -> Local Network. This does absolutely nothing for me. I have to wait for some random event of Chrome asking again for permissions. Even if I answer 'yes' the next update of Chrome in a week breaks everything again. How do normal developers operate in such circumstances I have absolutely no idea.. Do we need to have 2-3 Macs so that one of them actually works?!

Well that lasted until Chrome updated - as it does nearly every few days.

I ran up the white flag, changed the application to Chromey, and it is currently allowing local network.

Just to say that yesterday, 11th January 2025, I started up Chrome to do something other stuff and within a minute a dialog box popped up to ask if I wanted to allow access to devices on my local network. I clicked on Yes and now it is all working again. I've no idea what made it pop up that dialog box, but it could have been me connecting to the network using Ethernet when previously I was on WiFi. Not sure, but something triggered Chrome to just pop up the dialog box after starting up Chrome.