[CalendarServer-users] Calendarserver not recognized by Apple Calendar

[calendar at bastibe.de]

Hi,

I set up calendarserver on a Raspberry Pi. I can connect to it using an 
iPad and I can see the appropriate data in my web browser. Apple 
Calendar (OSX 10.8.4) however works for 30 seconds, then says "can not 
create a connection".

The Console is logging

> 11.08.13 16:16:42,633 CalendarAgent[14934]: 
> [com.apple.calendar.store.log.caldav.queue] [Got error on refresh, but 
> not rectifying principal because it was manually configured: Error 
> Domain=NSURLErrorDomain Code=-1001 "Zeitüberschreitung bei der 
> Anforderung." UserInfo=0x7fb2a3336580 {NSUnderlyingError=0x7fb2a1b2f640 
> "Zeitüberschreitung bei der Anforderung.", 
> NSErrorFailingURLStringKey=https://bastibe@cloud.bastibe.de:8443/calendars/__uids__/3e5c3ade-c0ea-5560-8dfb-dce1e4be3c22/calendar/, 
> NSErrorFailingURLKey=https://bastibe@cloud.bastibe.de:8443/calendars/__uids__/3e5c3ade-c0ea-5560-8dfb-dce1e4be3c22/calendar/, 
> NSLocalizedDescription=Zeitüberschreitung bei der Anforderung.}]

> 11.08.13 16:16:42,633 CalendarAgent[14934]: 
> [com.apple.calendar.store.log.caldav.queue] [Account 
> bastibe at https://cloud.bastibe.de:8443/principals/users/bastibe/ timed 
> out when executing operation: <CalDAVAccountRefreshQueueableOperation: 
> 0x7fb2a4a13ce0; Sequence: 0>]

> 11.08.13 16:16:42,636 CalendarAgent[14934]: 
> [com.apple.calendar.store.log.caldav.queue] [Account refresh failed 
> with error: Error Domain=NSURLErrorDomain Code=-1001 
> "Zeitüberschreitung bei der Anforderung." UserInfo=0x7fb2a4a69460 
> {NSUnderlyingError=0x7fb2a1b2f640 "Zeitüberschreitung bei der 
> Anforderung.", 
> NSErrorFailingURLStringKey=https://bastibe@cloud.bastibe.de:8443/calendars/__uids__/3e5c3ade-c0ea-5560-8dfb-dce1e4be3c22/calendar/, 
> NSErrorFailingURLKey=https://bastibe@cloud.bastibe.de:8443/calendars/__uids__/3e5c3ade-c0ea-5560-8dfb-dce1e4be3c22/calendar/, 
> AccountName=cloud.bastibe.de, CalDAVErrFromRefresh=YES, 
> NSLocalizedDescription=Zeitüberschreitung bei der Anforderung.}]


where "Zeitüberschreitung bei der Anforderung" is German for "timeout 
for request".

During those 30 seconds, the Raspberry Pi is running a Python process 
for the caldavd user at full CPU utilization.

So I'm guessing that Apple Calendar has an internal timeout of 30 
seconds and the Raspberry Pi is not fast enough to send the calendar 
data in that time frame.

Do you have any idea how I could fix that? Any help would be greatly 
appreciated!

Kind regards,
Basti