After upgrade to MacOS Mojave, I cannot login or connect to App Store.

I am also having the same issue after upgrading to Mojave yesterday. App store does not allow my account to be accessed. I'm not able to sign out. iTunes account access is working fine and so are other internet account set ups like iCloud and gmail.

Other unrelated issues with the Mojave upgrade:

1) System fan randomly gets loud

2) System sometimes will not wake out of sleep mode so I have to do a hard shutdown and power up using the power button.

Thanks, this is definitely the same error. I spoke with tech support this morning and passed a diagnostic file to them. If anyone finds a solution, please post it to the thread. (I will if I get one.)

Hmm... I've tried all of the above suggestions, can connect and download from App store but still only able to see Updates tab in the side bar, the See All option is still greyed out. Maybe Apple will see this thread and have a solution.

I have same problem of app store not being able to open. Oddly, today I noticed there was a note attached to the App store icon and it let me update an app it referred to . I hoped now I could enter the app store, but no. I still cant open App store.

I spent over one hour yesterday with apple 2nd line support. They did some tests, replicated the problem and downloaded bunches of log files. They promised to get back in two to three days. I’ll keep you guys posted when I get an update.

I had the same issue. Tried all the fixes I could find online but none worked. I couldn't even reinstall the os. My last resort was to clean install Mojave and of course deleting the hard drive. At least now it works. Check out if you can login to the appstore in safe mode.

I have 3 MacBooks that I upgraded to Mojave when it came out. My 2017 MacBook Pro and my father-in-law's 2017 MacBook Pro work just fine after upgrading. My wife's early 2013 MacBook Air on the other hand is having many of the same Mac App Store issues addressed here. I spent several hours chatting with representatives from Apple including Senior Advisors, trying several different things, as well as doing my own research to fix the Mac App Store on my wife's Mac, to no avail. I was able to finally get the App Store to sign out however, but now it won't sign back in. I hope Apple addresses this in an update soon.

Followed the instructions above but still can't sign into App Store. I put my username and password and while it looks like it accepts it, it never does anything different and continues to show me as not signed in.

I'm having the same issue.

As a test, I created a new Apple ID, generated a new user account on my Mac Book Pro, then attempted to log into the App Store on that new account using the new Apple ID. The same problem occurred.

The console shows several App Store errors when I first bring it up:

- "Unable to load Info.plist exceptions (eGPUOverrides)"

- "AWSNetworkQualityInquiry: The network quality inquiry couldn't be initialized for metrics."

- "AWSKeepAliveSession: [....] Failed to acquire assertion"

- "AMSURLRequest: Failed to fetch GUID schemes from bag" (several occurrences of this message)

Clicking on "Sign In" generates these App Store messages in the console:

- "ITLib xpc error: Connection interrupted"

- "Error getting iTunes pref."

- The above KeepLiveSession and URLRequest messages as well.

Lastly, entering the password and selecting "Sign In" generates these App Store messages:

- The above KeepAliveSession and URLRequest messages

- "Sign in failed with error code: -999, description: <private>"

Does that actually show a Debug menu on Mojave? When I perform those steps, there is no Debug menu.

$ defaults write com.apple.appstore ShowDebugMenu -bool true

$ defaults read com.apple.appstore

{

...

ShowDebugMenu = 1;

UserSetAutoPlayVideoSetting = 0;

mostRecentTabIdentifier = discover;

}

[Open App Store]

$ defaults read com.apple.appstore

{

...

UserSetAutoPlayVideoSetting = 0;

mostRecentTabIdentifier = discover;

}

[ The ShowDebugMenu setting is no longer present ]

Hello..I was getting the same problem. But my App Store is working now after update for two apps became available. I test opening and closing the app and still able to access/connect App Store.

Thank you.

I have the exact same problem. I submitted a bug report to http://bugreport.apple.com a few days ago, but there's been no activity on it.

I tried the certificate trust procedure and deleted the files inside /var/db/crls. I'm not running Snitch and I even tried turning off my firewall to no avail.

It's been this way for over a month now as I'm a developer and I've been using the Mojave betas for a while now.

Would love to get this problem solved.

I have the same problem. The thing is, I did not even want to install the new operating system yet, but my iPhone 7 crashed yesterday and after speaking to tech support throughout the day, I was told to update iTunes and my MacBook operating system after my iPhone wouldn't connect. Now the phone is working which had nothing to do with my MacBook but another non-related problem has developed.

I am so peeved!!!!!

I had the same issue. After digging around and trying everything I found in the forums nothing helped. Even opening my firewall and disabling deep inspection was not successful.

Finally it came to my mind the apple could use IPv6. Bingo. Forgot I had deep inspection switched on on IPv6 rule as well.

APPLE doesn't like ssl interception with resigning the certificate. They double check the signing authority of their certificate. With ssl interception the root CA changes of course. Next step is to bypass ssl interception for apple sites only to keep security scanning for other sites.

OK. Deep inspection on the firewall means that you break ssl. Like man in the middle. Technically you terminate ssl on the firewall take the certificate and resign with the CA certificate from the firewall. Means on the Mac you still have the certificate coming from Apple but signed by your firewall. App store is checking who was signing the certificate. If not by the right CA it will stop working.

I just switched of deep inspection on the firewall for IPv4 and IPv6 and app store started to work like a charm.

So if you have a firewall doing ssl interception you have to switch it off. If you have IPv6, then you have to switch it off there as well.