Network Diagnostics app missing

Hi Poppy, Definitely make your thoughts known to Apple. Our only hope is that the volume of complaints will force them to address this. I share your angst. But I urge you to consider following Keith's tips. Going slowly, step by step, anyone can do this. Most of us (especially us seniors) have a little luddite in us, but don't be afraid of terminal. I can't count how many times I've entered commands with typos (or worse) and almost always, the most that happens is your command is rejected and you start over. Sheepishly (but all too typical for me), I admit that when I copied and pasted Keith's ownership commands, in one case I inadvertently included part of the line that followed. Simple to correct. Most likely you'll be better than me, and in no time, you'll have Network Diagnostics residing happily on your desktop. Good luck.

Hi Poppy - I concur with Maria's comments. I followed Keith's instructions to the letter and everything worked perfectly so I now have Network Diagnostics and Network Setup Assistant working again in High Sierra. Once I'd set them up I moved the apps to the Applications/Utilities folder so they're easy to find and use. I've also complained to Apple but I doubt they'll respond, as based on their recent ads it looks like they're phasing out the Mac operating system (which ia a wonderful Linux implementation) in favour of everything being iOS (heaven help us!). Good luck and let the forum know when you've successfully reinstalled the apps - and we'll also help if you get stuck.

Eau Rouge made a good start explaining how to restore Network Diagnostics and Setup, but it's missing a few steps. Here are consolidated instructions:

In High Sierra the Network Diagnostics and Network Setup Assistant apps are no longer in the /System/Library/CoreServices location as they had been previously.

Copy those apps over from a Sierra install, the apps are in the same location as above. To drag them over to your High Sierra install you need to be an administrator as this needs to be Authenticated and System Integrity Protection must be disabled from Recovery (csrutil disable).

Next in High Sierra go to /System/Library/PrivateFrameworks/SetupAssistantFramework.framework/Versions/A/ SetupAssistantFramework hold the Control key down and click on SetupAssistantFramework then from the submenu click Move To Trash. Now move the framework out of the trash and keep it in an appropriately named folder as a backup. Do the same with /System/Library/PrivateFrameworks/SetupAssistantSupport.framework/Versions/A/Se tupAssistantSupport.

Next in Sierra go to /System/Library/PrivateFrameworks/SetupAssistantFramework.framework/Versions/A/ SetupAssistantFramework and copy the framework over to the corresponding location in High Sierra.

Do the same with /System/Library/PrivateFrameworks/SetupAssistantSupport.framework/Versions/A/Se tupAssistantSupport and /System/Library/Frameworks/NetworkDiagnosticsUI.framework.

Change owner of all files to root and permissions to rwxr-xr-x.

Enable SIP in Recovery (csrutil enable).

You should now be able to launch the apps from within the Core Services folder, or make an alias of each and drag them to a more accessible folder.

And don't forget to give feedback to Apple telling them to restore these Core Services to High Sierra!

https://www.apple.com/feedback/macos.html

Because some of us are not computer-savvy enough to handle all the suggestions already mentioned.

When my email accounts went down network diagnostics always solved the problem.

Why on earth is Apple so stupid as to remove this when they must know its value?

Apple are making things so complicated now that they are going to lose their long-time customers who bought

Apple because it was so much simpler than anything else.

Not so much now........

Hi Maria - Thanks for your reply and for encouraging me to try Keith's suggestion. I don't see the point of the Mail Connection Doctor without Network Diagnostics - so why they kept the one and got rid of the other is beyond me. Sometimes I think that Apple don't give any consideration to those of us who are not computer-savvy and yet there must be thousands of us. I always hoped they would bring out a laptop for simpletons but it wouldn't be at all sexy. And having just bought a "new" iphone 6S with a battery that last only for a day even when not in use, I think it is time that they put customer satisfaction ahead of their profits. But would I buy anything other than an Apple? Probably not! Thanks again for your encouragement. I shall take the plunge through gritted teeth and hope for the best.

Hi Scouserboy. You are talking to the Village idiot when it comes to computers. It took me years to work out what cut and paste meant - I live nowhere near an Apple store so have tried to keep things as simple as possible. Keith's instructions were double dutch to me which shows just how ignorant I am - and to be honest I chickened out! In the time since posting on here and having a "chat" with an Apple advisor (which is always a nightmare) my BT account came back on line. My "Chat" advisor told me she had no idea why I could not get Network Diagnostics and would I like to leave a report for the engineers? I bet they are engineers! So I filled in the form and said others on Apple Support were complaining about this and why could it not be reinstalled? I don't expect to get an answer but if I do I will post it on here. There must be other cowards like me who would be happier if Apple put things right! But I am grateful for your help. If you knew how little I know of my macbook pro you would suggest a return to paper and pencil!

Thanks again and a happy New Year to you both.

The Wireless Diagnostics app remains in /System/Library/CoreServices/Applications, but does not function as did the Network Diagnostics tool. So no, there is no single, visual Mac application to replace Network Diagnostics status panel.

Macintosh HD/System/Library/CoreServices/Applications/

Apologies, I was in my Sierra partition when I found this.

This does not appear to be a valid location on my High Sierra boot drive.

I'm diagnosing another issue with 10.13 (Which is why I booted back to 10.12) but I did see 10.12 has this functionality inside the >About this mac

Not sure if 10.13 has this option:

Network Assistant

In High Sierra the Network Diagnostics and Network Setup Assistant apps are no longer in the System/Library/CoreServices location as they had been in previous OS’s.

So I copied those apps over from a Sierra install, the apps are in the same location as above. To drag them over to your High Sierra install you need to be an administrator as this needs to be Authenticated.

Next in High Sierra we need to go to System/Library/PrivateFrameworks/SetupAssistantFramework.framework/Versions/A/S etupAssistantFramework hold the Control key down and click on SetupAssistantFramework then from the submenu click Move To Trash. Now move the framework out of the trash and keep it in an appropriately named folder.

Next in Sierra we need to go to System/Library/PrivateFrameworks/SetupAssistantFramework.framework/Versions/A/S etupAssistantFramework we then copy the framework over to the corresponding location in High Sierra.

Restart your Mac.

You should now be able to launch the apps from within the Core Services folder, or if you prefer move the items to the Dock, just drag the icons to the dock, left side of the separator. Or you could make an alias of each and drag them onto your desktop.

it's still in High Sierra, you just have to find it. if you hold down the option key and click on the Wifi icon in the status bar you will see the option to open wireless diagnostics. once open you can add it to your dock.

The settings you are looking has been some what changed or removed , every one here is just a Mac user , you can open network utility via spotlight and use the app - use the features of netstat , ping , lookup ..... , and for wi fi settings and DNS server settings .

Hold option key > click on wifi icon > click on open wireless diagnostics , take cursor on top menu bar click on window .

1. click on info you will get information as power state - on , interface name , channel band ....

2. Click on scan summary of 2.4GHZ and 5 GHZ

3. Performance .

4.Sniffer - for wi fi traffic .

Network Diagnostics is buried inside Network Preferences. Click on "Assist Me" and then "Diagnostics..." You can also find it in /System/Library/CoreServices/. Use the instructions I provided above to backup all the necessary files so you will have them if you ever upgrade to High Sierra.

I don't have the that tab anymore. I see I am on High Sierra already.

Am I screwed? Where are you instructions? U mean all that permissions stuff?

in the CoreServices folder how do I run the files/scripts that u are say are there? Which files? etc

Network Utility is not Network Diagnostics.