Difference between revisions of "Synology DiscStation"

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There is a bug in Synology's CalDAV server. CalDAV-Sync uses [[Glossary#calendar-query|calendar-query]] to get all events in the configured sync-window from the server. However, if there are no events in the sync-window the Synology firmware responds with an error "404 Not Found" instead of an empty list. This error will cause CalDAV-sync to cancel the synchronization. The only known workarounds at this time are to configure a larger sync-range in CalDAV-Sync's settings and/or to ensure there you always have at least one event in this range (you have to create them using another client that doesn't use calendar-query).
 
There is a bug in Synology's CalDAV server. CalDAV-Sync uses [[Glossary#calendar-query|calendar-query]] to get all events in the configured sync-window from the server. However, if there are no events in the sync-window the Synology firmware responds with an error "404 Not Found" instead of an empty list. This error will cause CalDAV-sync to cancel the synchronization. The only known workarounds at this time are to configure a larger sync-range in CalDAV-Sync's settings and/or to ensure there you always have at least one event in this range (you have to create them using another client that doesn't use calendar-query).
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Another reason for 404 errors has been identified: This error can occur if a calendar contains sub-folders (beside the .DAV folder).
  
 
One user has reported that his events disappear and later reappear.
 
One user has reported that his events disappear and later reappear.

Revision as of 14:36, 12 May 2013

Synology is a manufacutrer of NAS devices. Newer firmware releases support CalDAV - in a way (see below).

Setup

CalDAV-Sync

CalDAV-Sync has been reported to work well with Syncology DiskStations that support CalDAV. But please be aware of the known issue below!

Please refer to the manual/configuration of your DiskStation for the correct path name. In general it should be sufficient to enter the path to your CalDAV root.

known issues

There is a bug in Synology's CalDAV server. CalDAV-Sync uses calendar-query to get all events in the configured sync-window from the server. However, if there are no events in the sync-window the Synology firmware responds with an error "404 Not Found" instead of an empty list. This error will cause CalDAV-sync to cancel the synchronization. The only known workarounds at this time are to configure a larger sync-range in CalDAV-Sync's settings and/or to ensure there you always have at least one event in this range (you have to create them using another client that doesn't use calendar-query).

Another reason for 404 errors has been identified: This error can occur if a calendar contains sub-folders (beside the .DAV folder).

One user has reported that his events disappear and later reappear.