HT2513 Adding nw calender to the IMac calender creates error message

Question

On my IMac I want to add another calender. The one I also use on my Iphone.  I get the following error message:
Het verzoek voor account 'iCloud' is mislukt.
De server reageerde met
'400'
op de bewerking 'CalDAVUpdateShareesQueuableOperation'.
Strange also is the fact that the calender already has items from the calender I want to include.  The items that are given are only the recurring items.
Please help

Answer 1

I had the same issue, the calendar didn't show up after uppgrading my Iphone to IOS 5.0.1.
After reading several posts on different forums on the net (apple and synology forums). I begun to get a picture regarding my problem with caldav sync between my iPhone and my Synology diskstation. After testing the various recommended actions and settings, I found out that it was ONE setting in perticular that made the calendar and tasks show up on the iPhone.
When changing the setting under "E-mail, contacts, calendars" "Calendar - Syncronize - All events". Both the calendar and the Tasks started showing up in my iPhone. When I changed the setting back to "3 month", my preferred setting, both the Tasks and Calendar disappeared.
My conclusion is that it's the setting under E-mail ...... "Calendar - Syncronize" that makes the calendar appear and disappear from the calendar and task app.
I can't say if this is a bugg with the IOS 5 or the WEBDAV - CALDAV function on the Synology.
A fact is that the setting "syncronize: X months(weeks)" worked on previous versions of iPhone IOS (4.3.5).
I hope this exlpains and helps in fixing this bugg.
M