Q: "Unable to connect with Apple ID Server"

Hello there, JayLou.

It sounds like you're unable to login, using your Apple ID, to iTunes or the App Store on your iMac. One great first step is to always check Apple System Status to verify if any of Apple's Services are down:

Apple Services, Stores, and iCloud

If there are no related systems down, then troubleshooting on your iMac would be the next step. The following Knowledge Base article provides some great pointers for getting started:

If you can’t connect to the iTunes Store

If you have issues connecting to the iTunes Store, you might see one of these alert messages:

• "Cannot connect to the iTunes Store. An unknown error has occurred."
• "We could not complete your iTunes Store request. The iTunes Store is temporarily unavailable. Please try again later."
• "iTunes could not connect to the iTunes Store. Make sure your network connection is active and try again."
• "We could not complete your iTunes Store request. The network connection could not be established. There was an error in the iTunes Store. Please try again later.”

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Fix the issue on your Mac or PC

If you can't connect to the iTunes Store on your computer, these steps might help you fix the issue.

On your Mac

1. Make sure that you can access the Internet on your computer.
2. See if your computer meets the iTunes minimum system requirements.
3. Check that your operating system is up to date.
   From the menu bar at the top of your screen, choose Apple () > Software Update. If you don't see Software Update, choose Apple > App Store and click the Updates tab in the App Store window.
4. Make sure that you have the latest versions of iTunes and Safari.
5. If you have a firewall, your settings might not let you connect to the iTunes Store. Learn how to set up your firewall.
6. Connection issues are sometimes caused by keychain issues. To reset your keychain, use Keychain First Aid.
7. Contact your Internet service provider, and make sure that these ports and servers are turned on for your network.

If there's still an issue, get more help.

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Learn more

• Did the steps above fix your issue? If not, and you get a specific error, see if it's listed as a possible iTunes Store error.
• Learn how to find your Apple ID.
• Learn what to do if you forgot your Apple ID password.

Thanks for reaching out to Apple Support Communities.

Kind Regards.