[Tickets #10277] Re: ActiveSync Calendar and Tasks not working

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Ticket URL: http://bugs.horde.org/ticket/10277
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  Ticket             | 10277
  Updated By         | Michael Rubinsky <mrubinsk at horde.org>
  Summary            | ActiveSync Calendar and Tasks not working
  Queue              | Horde Base
  Version            | 4.0.6
  Type               | Bug
-State              | Unconfirmed
+State              | Duplicate
  Priority           | 1. Low
  Milestone          |
  Patch              |
-Owners             |
+Owners             | Michael Rubinsky
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Michael Rubinsky <mrubinsk at horde.org> (2011-06-26 16:13) wrote:

At first glance it looks like whatever device you are provisioning  
first in the log is broken. It is sending a PING request *before* it  
issues a SYNC request which is against the specification. From  
MS_ASCMD section 2.2.1.11:

"The server uses the last <SyncKey> returned to the client when  
determining to report in the Ping response. Therefore the client MUST  
have received the response to its last Sync request and successfully  
applied the changes sent by the server, prior to issuing a Ping  
request."

That being said, this *should* still work because the code is smart  
enough to know that if there was no previous SYNC, then we are looking  
for *all* changes (that's why the '0' values are in the getChanges  
call in the log).

I think the main problem here is a duplicate of  Bug: 10194

You also might be being bit by another bug that a recent comment (also  
described in the Bug comments of 10194) has fixed.