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iCloud: Troubleshooting iCloud Reminders and Tasks

Symptoms

If you encounter an issue using iCloud Reminders, follow the steps in this article to help you troubleshoot.

Note: When accessed from a Windows PC, iCloud Reminders are labeled Tasks and appear within the Tasks section of Outlook.

Resolution

Before troubleshooting, make sure you've made copies of any important Calendar and Reminders data from your devices and iCloud.

iCloud Reminders are related to iCloud Calendar, so much of the information found in this article also appears in iCloud: Troubleshooting iCloud Calendars. In some cases, troubleshooting Reminders requires troubleshooting and interacting with iCloud Calendar.

Always begin with the general troubleshooting steps below. If these steps don't resolve your issue, follow the steps for the operating system that you're having issues with.

General troubleshooting

  • Check the System Status page to make sure there aren't any issues affecting iCloud Bookmarks or Reading List.
  • Make sure you've fully enabled iCloud Calendar & Reminders for the client you are using. For more setup and troubleshooting information, see the additional steps for iOS, OS X, Windows, and iCloud.com in this article.
  • Check iCloud Help (help.apple.com/icloud) for possible information about the issue you are experiencing.
  • Check your settings and preferences, because something may not be set up correctly. For example, having incorrect date and time settings can cause issues that are easily resolved by entering the appropriate settings.

Troubleshooting Reminders on iOS devices

If you're having trouble with Reminders on an iOS device (iPhone, iPad, or iPod touch) and iCloud Calendar, try each of these steps, testing after each to see if the issue is resolved:

  • Make sure that you're using iOS 5 or later. If you meet these requirements but your issue continues, try installing the latest version of iOS supported by your device.
  • Make sure that your iCloud account is configured correctly in Settings. For instructions on setting up iOS for iCloud, see iCloud Setup. Reminders is a separate data type on iOS. It must be enabled via the Reminders setting in Settings > iCloud.
  • Make sure your iOS device is online. Attempt to view www.apple.com. If you can't connect to the Internet, your iCloud Reminders will not update in Calendar. Learn about troubleshooting your Internet connection.
  • Open a secure website to test if ports 80 and 443 are accessible. Reminders requires port 443 access to iCloud to push and fetch updates to and from the iCloud Calendar and Reminders servers.
  • If recent changes don't appear in Reminders, try forcing a refresh. In iOS 7:
    • Open the Calendar app.
    • Tap the Calendars tab to load the Calendars list.
    • Pull down on the list to refresh both calendar events and reminders.
  • If recent changes simply don't appear in Reminders, try forcing a refresh. In iOS 6 and 5:
    • Open the Calendar app.
    • Tap Calendars in the top-left corner to load the Calendars list.
    • Tap the Refresh button in the lower-left of the Calendars list.
  • Quit and restart the Reminders app on your iOS device.
    1. In iOS 7, press the Home button.
    2. Press the Home button twice to see preview screens of the apps you have open.
    3. Find the Reminders preview screen and swipe it up and out of preview to quit the application.
  • Quit and restart the Reminders app on your iOS device.
    1. In iOS 6 and iOS 5, press the Home button.
    2. Press the Home button twice to open the multitasking menu.
    3. Press and hold the Reminders icon until it jiggles.
    4. Tap the red circle in the upper-left corner to quit the app.
    5. Press the Home button to get back to your Home screen. Wait a minute before reopening the Calendar app.
  • Change the Sync settings for your calendars:
    1. In iOS 7 and iOS 6, tap Settings > Reminders.
    2. In iOS 5, tap Settings > Mail, Contacts, Calendars, then scroll down to the bottom to the Reminders section.
    3. Tap Sync. If Sync is set to All Reminders, set it to a specific duration, such as Reminders 1 Month Back. If it's already set to a specific duration, set it to All Reminders.
    4. Wait several minutes and refresh again, as described previously. Then open the Reminders app again.
  • Turn iCloud Reminders off and back on:
    1. Tap Settings > iCloud.
    2. Turn off Reminders. Choose to delete data only if your reminders exist at icloud.com/#reminders and on one or more of your devices. Otherwise, choose Keep Data.
    3. Wait a few minutes before turning Reminders back on.
  • Restart your iOS device: Hold down the Sleep/Wake button until the red slider appears, then drag the slider. After the device turns off, turn it back on by pressing the Sleep/Wake button until the Apple logo appears. This may sound simple, but it reinitializes your network and application settings and can frequently resolve issues.

Troubleshooting Reminders on OS X Mountain Lion and later

Note: For instructions on setting up iCloud Calendar and Reminders with the Reminders application, see iCloud Setup.

If you are having trouble with Reminders on a Mac, try each of these steps, testing after each to see if the issue is resolved:

  • Make sure that you're using OS X Mountain Lion v10.8 or later. Learn how to verify the version of OS X you are using.
  • Make sure your computer is online. Attempt to view www.apple.com. If you can't connect to the Internet, your iCloud Reminders will not update in Calendar. Learn how to troubleshoot your Internet connection.
  • Open a secure website to test if ports 80 and 443 are accessible. Reminders requires port 443 access to iCloud in order to push and fetch updates to and from the iCloud Reminders servers.
  • Verify that your iCloud member name is entered into the iCloud preference pane in System Preferences and the Reminders setting is selected (Calendars & Reminder setting in OS X Mountain Lion). See iCloud Setup for more information about setting up iCloud on a Mac.
  • Quit and reopen both Calendar and Reminders. This step can resolve many issues.
  • If recent changes don't appear, try forcing the app to refresh: Open Calendar and choose Refresh Calendars from the View menu to refresh both your calendars and your reminders.
  • Turn off iCloud Calendar and Reminders, then then turn them back on:
    1. Quit Calendar and Reminders.
    2. Choose System Preferences from the Apple () menu, then click iCloud.
    3. Click the checkboxes to deselect Calendars and Reminders. In OS X Mountain Lion, deselect the single checkbox for Calendars & Reminders.
    4. Close System Preferences and wait about a minute.
    5. Open System Preferences and click iCloud.
    6. Click the checkboxes to select Calendars and Reminders. In OS X Mountain Lion, select the single checkbox for Calendars & Reminders.
    7. Close System Preferences.
    8. Open Reminders and test to see if the issue has been resolved.
  • Restart your computer. This may sound simple, but it reinitializes your network and application settings and can frequently resolve issues.

Troubleshooting Reminders on OS X Lion

Note: For instructions on setting up iCloud Calendar and Reminders with iCal, see iCloud Setup.

If you're having trouble with iCal on a Mac and using iCloud Calendar, try each of these steps, testing after each to see if the issue is resolved:

  • Make sure that you're using OS X Lion 10.7.5 or later. Learn how to verify the version of OS X you are using.
  • Make sure that iCal is set to display Reminders. To show Reminders in iCal, choose Show Reminders from the iCal View menu.
  • Make sure that your computer is online. Attempt to view www.apple.com. If you can't connect to the Internet, your iCloud Reminders will not update in Calendar. Learn how to troubleshoot your Internet connection.
  • Open a secure website to test if ports 80 and 443 are accessible. Reminders requires port 443 access to iCloud to push and fetch updates to and from the iCloud Calendar and Reminders servers.
  • Verify that your iCloud member name is in the iCloud preference pane in System Preferences. See iCloud Setup for more information about setting up iCloud on a Mac.
  • If recent changes don't appear, try refreshing iCal by choosing Refresh All from the iCal Calendar menu.
  • Quit and reopen iCal. This step can resolve many issues.
  • Make sure your account was successfully created in iCal. You may need to quit and reopen iCal. To confirm that your account is configured correctly in iCal:
    1. Open iCal.
    2. Choose Preferences from the iCal menu.
    3. Click Accounts. You should see an account with your iCloud member name entered.
  • Turn iCal off and back on:
    1. Quit iCal.
    2. Choose System Preferences from the Apple () menu, then click iCloud.
    3. Click the checkbox to deselect Calendars.
    4. Close System Preferences, and wait about a minute.
    5. Open System Preferences, and choose iCloud.
    6. Click the checkbox to select Calendars.
    7. Close System Preferences.
    8. Open iCal and test to see if the issue is resolved.
  • Restart your computer. This may sound simple, but it reinitializes your network and application settings and can frequently resolve issues.

Troubleshooting Reminders on iCloud.com

  • Check iCloud Help (help.apple.com/icloud) for possible information about the issue you are experiencing.
  • If you're having trouble with the web-based iCloud Reminders at icloud.com/#reminders, the first place to start troubleshooting is your browser. Learn how to troubleshoot browser issues for a variety of web browsers on multiple operating systems. Browser troubleshooting should never be skipped for web-based issues.
  • If you encounter an issue while using iCloud Reminders on the web, a message may appear with a "Send to Apple" button. Clicking this button helps iCloud to track issues and create fixes.
  • If updates from other devices do not appear, or if the Reminders interface does not appear as expected, switch to another application by clicking iCloud in the upper-left corner and selecting the application you wish to use. After visiting a different application, such as Contacts, switch back to Reminders. If issues persist, you may wish to sign out of iCloud by clicking your name in the upper-right corner, signing out, then signing back in.

Troubleshooting Tasks on Microsoft Windows (Microsoft Outlook)

If you are having trouble with iCloud Tasks on a PC (with Outlook 2007 or later), try these steps, testing after each to see if the issue is resolved.

Note: iCloud Control Panel does not support Outlook 2010 Personal Edition.

  • Verify that you're using a Windows configuration that is supported by iCloud.
  • Make sure your computer is online. Attempt to view www.apple.com. If you can't connect to the Internet, your iCloud calendars and events will not update in Outlook. Learn how to troubleshoot your Internet connection.
  • Open a secure website to test if ports 80 and 442 are accessible. iCloud Reminders will not update without an Internet connection. Reminders requires port 443 access to iCloud to push and fetch updates to and from the iCloud Calendar and Reminders servers.
  • Verify that your iCloud member name is entered into the iCloud Control Panel. See iCloud Setup for more information about setting up iCloud on Windows.
  • Close and reopen the iCloud Control Panel.
  • If you recently made changes in Outlook and these changes are not moving to your other devices or vice versa, click the Refresh button in Outlook.
  • Turn iCloud Calendar off and back on:
    1. Quit Outlook.
    2. Open the iCloud Control Panel:
      • In Windows 8.1, go to the Start screen, click the down arrow Down arrow in the lower-left corner, then click the iCloud app.
      • In Windows 8, go to the Start screen, then click the iCloud tile.
      • In Windows 7, choose Start menu > All Programs > iCloud > iCloud.
    3. Deselect the checkbox next to Mail, Contacts, Calendars & Tasks, and click Apply. Wait about a minute, select the checkbox again, and click Apply.
    4. Open Outlook and test to see if the issue has been resolved.
  • Ensure the iCloud Outlook Add-in is active within Outlook.
    • Outlook 2013 and 2010:
      1. Open Outlook 2013 or 2010.
      2. Click the File menu.
      3. Click Options in the left panel of the Outlook window.
      4. Click Add-Ins in the left panel of the Outlook Options window.
      5. Look at the list of add-ins beneath "Active Application Add-Ins" and verify that "iCloud Outlook Add-in" is listed.
    • Outlook 2007:
      1. Open Outlook 2007.
      2. From the Tools menu, choose Trust Center.
      3. Select Add-ins from the left column.
      4. Look at the list of add-ins beneath "Active Application Add-Ins" and verify that "iCloud Outlook Add-in" is listed.
    • Learn more about managing Add-ins with Microsoft Outlook.
  • Restart your computer. This may sound simple, but it reinitializes your network and application settings and can frequently resolve issues.

Note: When enabling Mail, Contacts, Calendars & Tasks in the iCloud Control Panel, part of the setup process is to copy your Tasks data from the default Outlook .pst file to iCloud, then remove the Tasks from the .pst file by placing them in the Deleted Items folder in Outlook. The Tasks data is then stored in the iCloud data set within Outlook so that changes can be pushed to and from Outlook by iCloud. Make sure that you're looking for your data within the iCloud folder within Outlook after enabling Mail, Contacts, Calendars & Tasks in the iCloud Control Panel. The deleted files can be seen by viewing Deleted Items within your Outlook Folder List. This is not iCloud removing your data. iCloud simply copies your data into the iCloud data set and then removes the local Tasks data by placing it in the Deleted Items folder.

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Last Modified: Sep 5, 2014
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  • Last Modified: Sep 5, 2014
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