I have recieved the following error on my computers when I try to use my Macbook Calendar with Yahoo Calendar. The server responded: “403” to operation CalDAVAccountRefreshQueueableOperation. It also shows Authentication Failed. My yahoo calendar synchs with no issues on all my iphones.
MacBook Air 13″
Hi gooseewo,
Try removing and re-adding the calendar on your Mac.
Select the version of macOS you have on your Mac from the 'Select Version' section at the top, then follow the steps below to remove and then re-add that calendar.
If you receive the same result, contact Apple Support to take a closer look.
Take care.
I removed my Yahoo account. Now I get "Authentication Failed - Failed to authenticate with Yahoo!, please try again later". So I don't think it's the calendar app specifically.
Hi gooseewo,
Hope this message finds you well. Reading through your situation here it seems like could be helpful.
Yahoo Help: Fix iCal errors, display issues, and buttons that don't work in Yahoo Calendar
There's a section in the article listed above that calls out Authentication errors such as yours. If you'd like you can follow the recommended steps below:
If you're unable to sync your Yahoo Calendar to a device or application, the server name or login info may be incorrect. To fix this issue, enter the correct server name in your calendar tools settings:
• Correct server name: https://caldav.calendar.yahoo.com
• Verify your login information works. Try to sign in to your Yahoo Mail account on your Mac
• If your password includes special characters(like '#' or '$'), change your password to exclude them, then update your password on your Mac, and attempt to reproduce the issue.
• If you're using an iOS device, try to sync your account with the Setup Wizard.
Give it a shot and let us know what you find.
Take it easy out there!
Apple Calendar showed authentication Failed when try to synch with Yahoo Calendar
