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

I did all the troubleshooting that I knew and all that I read and hours on the phone with support.... finally I noticed my vpn was connected.... I turned it off and VIOLA! it works fine and dandy now. In summary I think vpn and apple are no longer compatible, no need to take off your firewall and such .

Scroll down and see if you see an older App Store, drag to trash. I had two App Store Apps in this folder, one older and the new one that came with the Mojave update. Kept the new, trashed the old. Then everything worked great.

Sorry that is in reverse order and the first is posted twice, can't seem to delete that one. But, click on your desktop to get "Finder" to pop up, then click on "Go" and choose "Computer". Then click on the name of your mac from the menu on the left. In that search bar on the top, enter "Software". In mine, it is alpha order but was still buried in the list...I was so excited to see it I don't remember why it wasn't listed right under the other App Store.

Amyskis,

Thank you for all your help in this issue I finally got this far to bad there was not like yours then mine would have worked as well. But many thanks to you and maybe some else can pickup from here.

But again thank you for all your help again.

Have a great holiday season.

It did not work for me. However, after scrolling down this thread I found that someone was able to fix the issue with apps store by turning off his anti virus app. So I turn off my Kapersky and viola I was able to connect to the apps store. thank you

ria_p,,

Yes I did that cause someone on here told me to uninstall it and I did cause Macs do not need a virus protection cause it can cause more problems or corrupt your hard drive. He told me to uninstall did it and still cannot get in it.

If I were you would diffidently uninstall Kapersky casue that is not a safe anti virus there was a lot of talk on radio and in news that the company was not a good one many problems with owner and lying. So please delete that asap. That is number # 1 bad one.

But thanks for your help anyway maybe someone out there has another fix.

Thank you to all of you that have tried to help me and if there is anything else that can be done I would try it.

For me it was the proxy settings, I am using a .pac script that lies on a server for a VPN and I have to use PulseSecure as a VPN client. Under High Sierra the proxy script was only used (if it was used at all) to look up the proxy when connected to the VPN otherwise it was ignored.

This seems not be the case under Mojave. While browsers ignore the proxy setting when the .pac file hosting server is not reachable, the App Store seems to use this setting every time and can not resolve the .pac file and therefore does not connect to the App Store.

Hi Frank,

this thread was one of the first results I got from google when I was looking for my problem. So I wanted to post my solution here so that maybe others can find it: I had to disable the proxy configuration with .pac file.

I tried that already you be better off contacting apple direct they had remote access to my computer and saw the mouse moving around and when he was done it worked for me and also fixed the rainbow spinning wheel on Safari as well cause I was getting this issue as well since the update.

I'm very appreciated your answer. It has really fixed the problem encountered in use of "Mac mini late 2012".

I suppose that your post should be spread into all people using particularly old mac.

Anyway, thank you very much!

How the **** can this happen with a legitimate upgrade? we pay far too much for apple products in this country and then yet again they fuck up like this. I can't find essential personal or work photos after upgrading and I'm seething that after all the tizz that comes with an upgrade from the fucking manufacturer, that my computer via apple is calling the fucking shots, not me! What else have they surreptitiously altered in my machines after this upgrade and why could they not come clean after the fact and said: "by the way your xxx apps might be in need of a spot of spannering as we have "ahem, like, screwed-up dude", or some such hipster spray?

Steve Jobs: turn in your grave...you started an insidious revolution that is creating mayhem and we are as addicted and addled as junkies because we have come to rely on the reliability and relative ease of the mac platform whilst being led down a narrowing tunnel of servitude: I could seriously spit on your grave!

I just upgraded from High Sierra to Mojave yesterday, and promptly encountered the Could not Check for Updates (I was on 10.14, I know there is a 10.14.2 waiting), and Could not Connect to App Store problem. It was strange as all my other applications, browsers, etc. were able to access and download stuff from the Internet properly.

I tried deleting the Security Trust Settings, and Disabling and Reenabling DigiCert CA Trust in Keychain Access, to no avail, even after rebooting. I was contemplating reinstalling from scratch when I read other posts that doing a restore won't help matters.

I even tried updating manually by downloading the 10.14.2 Combo Updater from Apple directly, but the problem persisted.

The mention of Firewall issues triggered an idea for me. I'm normally connected to the network via Ethernet. I don't have any proxies enabled in macOS, but I do have ClamXAV, Docker and VMWare Fusion (these create virtual bridged interfaces in the system) installed. As far as I know there are no firewall rules enabled that would cause problems.

On a whim I tried disconnecting the Ethernet cable and enabling WiFi, and lo and behold, the App Store and the Software Update Panels worked. After disabling Wifi and reconnecting via Ethernet, it seems to be working now.

Somehow the Software Updater and App Store uses a different mechanism to connect to the Internet, and it was stuck in some unknown state that persisted even with rebooting. Presumably switching the default interface for access to the network somehow reset the configuration.

Thank you tcwan, I have a new MacBook Pro 15" which booted into Mojave 10.14.2 on initial install and had been working fine accessing everything for over a week when suddenly it began reporting unable to connect. I also had an older Mac which I had just updated. In any event your suggestion of changing the network interface worked for me, although it was in reverse. I had been using WiFi when it stopped working, I plugged an ethernet cable into my USB C hub and stopped WiFi and it began working.

Reboot doesn't seem to solve the problem either but plugging via ethernet cable continues to work.

I experienced this problem after a fresh install of Mojave on a MBP (15"/2016).

After running through a lot of troubleshooting tips from this thread nothing helped.

My solution was to log out of iCloud in system preferences, reboot and then log in to iCloud again.

Beforehand (during the fresh install of Mojave) I deactivated iCloud Drive, Stocks app and some other stuff I don't need in the iCloud system preferences. I think this was what caused the problem.

Thank you very much for explaining in details the steps for the solution. It worked for me and it was not necessary to reinstall Mojave. Only restart was necessary after the steps described above. What is happening with Apple?