![]() ![]() Change “When using this certificate” from “Use System Defaults” to “Never Trust”.Double Click “DigiCert High Assurance EV root CA”.open the Keychain Access app (Applications > Utilities > Keychain Access).On your Mac, complete the following steps:.Try the App Store in Safe Mode and then restart your Mac normally (this time, do not press the Shift key). You can restart your Mac by pressing and holding the Shift key as your Mac starts up (turn off your Mac then turn on and immediately press and hold the Shift key). You may also want to check the box for “Set date and time automatically”. Go to System Preferences > Date & Time to check this. On your Mac, make sure that the date and time settings are done correctly.If you are running an earlier version of the macOS software (e.g., macOS High Sierra, etc) then you will need to open the App Store and click Updates. If there is an update available, update the software on your Mac by following the on-screen instructions. If you are running macOS Mojave or later, go to System Preferences > Software Update and then click Check for Updates. Make sure that your operating system is up to date. If you are using a VPN or proxy to connect to the Internet, disable them to see if that fixes your problem.Open the App Store on your Mac and then click Store (top menu bar) and click Sing Out and then sing back in.From the top menu bar, click Account and then Sign out. You’ll know when the service is working again. If this the case, there is little you can do. For instance, currently, it is saying “Mac App Store – Completed Maintenance. 1.7% of users were affected. Customers may have been unable to make purchases from the App Store, iTunes Store, iBooks Store, or Mac App Store.” As you can see, the Mac App Store was down for some users, and but now it is fixed. It is possible that the App Store service is having issues with its servers or systems. Go to Apple’s System Status website and check. Make sure that Apple Mac App Store servers are up and running.Contact your Internet service provider and confirm that there are no outages.Restart your router/modem (Unplug the power supply, wait 30 seconds and then plug it back in).If not, you may try the following troubleshooting tips: Check to see if websites load in Safari or in other browsers. Make sure that your Mac is connected to the Internet. First, let’s make sure that there are no network connectivity issues.See also: Cannot Send or Receive Messages on Your Mac? Why can’t my Mac connect to the App Store? ![]() This article explains what you can do when your Mac can’t connect to the Apple App Store and won’t download, install, or update apps. Please note that if you are having this issue on your iPhone or iPad, please see this article. Further, users stated that this problem started after updating their Mac devices. Several users have reported that they are having problems connecting to the Mac App Store. ![]()
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