Previous 1 2 Next 22 Replies Latest reply: Apr 27, 2014 5:59 PM by Me-Myself
KON2 Level 1 Level 1

Hi. I keep getting this error message when I open ical.


"The server responded with an error. The request for account “” failed. The server responded with “502”

to operation CalDAVAccountRefreshQueueableOperation"


This is accompanied with the option of going offline or staying online. If I select the stay online option, the message re-appears.


Enable account is activated in the preferences pane. I have also tried turning the "Automatically retrieve CalDAV invitations from Mail" option on and off in the prefs with no effect


Any ideas?


Many thanks



iMac (21.5-inch Mid 2011), Mac OS X (10.7.3)
  • danfromplano Level 1 Level 1

    I have exactly the same issue as you're experiencing (same iMac, same OS)...problem occured yesterday for the first time...frustrating!

  • dennis 287 Level 1 Level 1

    I have the same issue as you are.  Operating System is IMAC 10.1

  • misspate Level 1 Level 1

    I have this same exact problem.  I've been trying to synch my (AT&T uses Yahoo) with iCal and can't get it to work.  I thought by going to preferences and deleting that I could re-add and fix the problem; however, I can't even re-add successfully.  I continue to get a 502 error.  My OS is Mac 10.7.3.

  • misspate Level 1 Level 1

    I failed to mention that I went to the apple store and had a "personal project" class and asked about this; however, the apple person told me it was a Yahoo problem.  It sounds more like an apple problem to me.

  • misspate Level 1 Level 1

    My iCal is now in-sync......not sure how the problem was fixed, but it is now in sync with Yahoo.  I am no longer experiencing the 502 error and all my entries are there......  YEAH....I like iCal much better than the Yahoo Calendar.

  • cpj357 Level 1 Level 1

    Do you share a calendar with anyone else?  I was having the same problem and found out that my wife's iCloud account was locked out by apple (for some unknown reason).  When I tried to log into her account on, I was notified that she needed to go to and change her password.  Once I did that, I was able to use iCal again without the error.

  • KON2 Level 1 Level 1

    I don't share a calendar so not sure what the next move is?

  • surfingrgirl Level 1 Level 1

    I also have this problem with the exact error message. It is very annoying so I hope someone has a solution. I have OS 10.7.3 as well.

  • MeHapple Level 1 Level 1

    I have the same problem but learned that Yahoo have a "Proxy error"...:


  • purpleprinc3ss Level 1 Level 1

    i got the same problem. It happened out of no where where my calender on my phone and my my macnook pro arent syncing. idk what this **** erroe msg 502 means????

  • gringo11 Level 1 Level 1

    Having this problem todays syncing directly with iCloud (not Yahoo or anything else). Could it just be that the iCloud server is down?


    My wife also syncs to the same calendar - and is also getting error 502. Tech chat with Apple on moving to iCal said it wasn't a problem for two people to log into same iCloud account via same ID.


    Wierdly, every time I go from iCal prefs > Edit Account > iCloud (in SysPrefs) > Details I see my wife's name listed there alongside AppleID. I change it, but when I reopen Sysprefs, it's changed itself back.


    Anyone got any ideas? Am fully updated on OSX10.7.4

  • maximumfun Level 1 Level 1

    I have been having this issue since I inadvertently changed my Apple ID from an ID to a ID. When I switched back to the account in iCloud details, I stopped receiving the error and I was able to synch across my Mac (MacBook Pro Late 2011/Lion OS), iPhone, iPod and iCloud.

  • IMRAN Level 2 Level 2

    Could you help us understand why this would be an Apple-caused problem if (as in my case) only Yahoo gives:


    The request for account “Yahoo!” failed.

    The server responded with


    to operation CalDAVAccountRefreshQueueableOperation.


    and there is no problem handling calendars on iCloud, Gmail, etc. ?



  • IMRAN Level 2 Level 2

    For what it's worth, I have this problem on and off and only with Yahoo. Never with Gmail or iCloud accounts. I even deleted the Yahoo account and re-added it, but still get:


    The request for account “Yahoo!” failed.

    The server responded with


    to operation CalDAVAccountRefreshQueueableOperation.



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