i have found it helpful to change the channel my wifi is on; i did this a while back, and my macbook stays connected; just an idea...
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Where is the Assist Me in Wifi in High Sierra?
- Thread starter Investor27
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The problem is that the 'assist me' button has disappeared in High Sierra and the help system seems to be pretending that it never existed (ie. I can't find any documentation as to whether it's moved, been replaced, was all a figment of my imagination).
I am dealing with exactly the same situation today ... 
I just installed Sierra last night and looking for this Assistant Button... That option is GONE !!! It DOES look like it never existed before !
It was so convenient before to Run diagnostics to restore the connection...
I just installed Sierra last night and looking for this Assistant Button... That option is GONE !!! It DOES look like it never existed before !
It was so convenient before to Run diagnostics to restore the connection...
fisherking & EGustav, are you both speaking of the same thing? Sorry, I'm pretty new to Mac, but the 'assist me' button in network settings has been my bestie since I started a year or so ago. I created a new 'location' as you mentioned, EGustav, but no idea what the heck that did... lol. Does it 'kind of' reset me (as the assist me button use to?) when I switch between locations? Blaahhhh... I want my bestie back!!
I can't believe they removed it and don't even acknowledge it. it was by far the best built-in tool to deal with wi-fi connections. I recommended it to every mac user every chance I got, it saved me many times over the years. I feel like I am being gaslighted here
why does apple have to make their users and supporters' lives ever so often harder, little by little? it's the little things... damn you, capitalism
why does apple have to make their users and supporters' lives ever so often harder, little by little? it's the little things... damn you, capitalism
I have found the diagnostics! It’s still in the system. Hold down the options key and click the Wifi icon in the menu. This will bring up an advanced version of the WiFi menu. Now just click on wireless diagnostics and complete the wizard!
The wireless diagnostics app never left --- but that's not what this thread is complaining about.
The Wireless Diagnostics doesn't do much for you, except create a report.
The previous "Network Diagnostics" would allow you a status check on either the wifi, or a wired connection, showing you instant feedback about the connection itself.
It showed a set of lights, where you could immediately see that the connection was being lost at the modem, or, that everything appeared to be good, until the computer system fails --- simply by noting if the lights were all green, or some part of the connection was failing (showing yellow, or even red). Use that a few times, and you could quickly know that you needed to restart the router, when everything else appeared good. It would often take only a few seconds, and was quite useful.
Now, the Wireless Diagnostics has to run the report, that may or may not provide you any useful information other than "reset your modem", or "go through this list of possible fixes for your connection." The former Network Diagnostics (usually) made short work of that process.
That's what used to be available from the "Assist Me..." button.
The Wireless Diagnostics doesn't do much for you, except create a report.
The previous "Network Diagnostics" would allow you a status check on either the wifi, or a wired connection, showing you instant feedback about the connection itself.
It showed a set of lights, where you could immediately see that the connection was being lost at the modem, or, that everything appeared to be good, until the computer system fails --- simply by noting if the lights were all green, or some part of the connection was failing (showing yellow, or even red). Use that a few times, and you could quickly know that you needed to restart the router, when everything else appeared good. It would often take only a few seconds, and was quite useful.
Now, the Wireless Diagnostics has to run the report, that may or may not provide you any useful information other than "reset your modem", or "go through this list of possible fixes for your connection." The former Network Diagnostics (usually) made short work of that process.
That's what used to be available from the "Assist Me..." button.
Here is a copy of a post from Apple Support Communities discussing this issue.
Nov 10, 2017 1:41 PM in response to Keith Riggle
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/SetupAssistantSupport.
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/SetupAssistantSupport and also move /System/Library/Frameworks/NetworkDiagnosticsUI.framework from Sierra to the System/Library/PrivateFrameworks folder.
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
Is this for the very helpful "Assist me" option, or for the rather useless "Wireless Diagnostics" option??
Following the procedure above will bring back the Assist Me button in Network Preferences.