[sync] Horde ActiveSync with outlook 2013 problem on Centos 6.5 + apache on virtualmin

[mn 320]

Here is the sync log:
2014-09-08T17:24:56+02:00 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx INFO: [11499]
Horde_Core_ActiveSync_Driver::authenticate() attempt for user at domain.com
2014-09-08T17:24:56+02:00 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx INFO: [11499]
FOLDERSYNC request received for user user at domain.com
2014-09-08T17:24:56+02:00 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx INFO: [11499]
Device entry exists for xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx, updating userAgent
and version.
2014-09-08T17:24:56+02:00 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx INFO: [11499]
Request being handled for device: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx,
Supporting protocol version: 14.0, Using Horde_ActiveSync v2.18.1
2014-09-08T17:24:56+02:00 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx INFO: [11499] GET
VARIABLES: Array
(
    [Cmd] => FolderSync
    [User] => user at domain.com
    [DeviceId] => xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
    [DeviceType] => WindowsOutlook15
)
2014-09-08T17:24:56+02:00 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx INFO: [11499]
Handling FOLDERSYNC command.
2014-09-08T17:24:56+02:00 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx INFO: [11499]
Checking policykey for device: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx user:
user at domain.com
2014-09-08T17:24:56+02:00 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx INFO: [11499]
Allowing xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx to connect since it is
non-provisionable.
2014-09-08T17:24:56+02:00 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx INFO: [11499]
Policykey:  verified.
2014-09-08T17:24:56+02:00 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx DEBUG: [11499] I
<FolderHierarchy:FolderSync>
2014-09-08T17:24:56+02:00 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx DEBUG: [11499] I
<FolderHierarchy:SyncKey>
2014-09-08T17:24:56+02:00 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx DEBUG: [11499]
I     0
2014-09-08T17:24:56+02:00 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx DEBUG: [11499] I
</FolderHierarchy:SyncKey>
2014-09-08T17:24:56+02:00 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx NOTICE: [11499]
Horde_ActiveSync_State_Base::loadState: clearing folder state.
2014-09-08T17:24:56+02:00 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx INFO: [11499]
Resetting device state for device: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx, user:
user at domain.com, and collection: foldersync.
2014-09-08T17:24:56+02:00 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx NOTICE: [11499]
Clearing foldersync state from synccache.
2014-09-08T17:24:56+02:00 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx INFO: [11499]
Clearing collections data from cache.
2014-09-08T17:24:56+02:00 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx INFO: [11499]
Replacing SYNC_CACHE entry for user user at domain.com and device
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx:
a:11:{s:18:"confirmed_synckeys";a:0:{}s:17:"lasthbsyncstarted";b:0;s:17:"lastsyncendnormal";b:0;s:9:"timestamp";s:10:"1410189896";s:4:"wait";b:0;s:10:"hbinterval";b:0;s:7:"folders";a:0:{}s:9:"hierarchy";s:1:"0";s:11:"collections";a:0:{}s:13:"pingheartbeat";b:0;s:14:"synckeycounter";a:0:{}}
2014-09-08T17:24:56+02:00 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx DEBUG: [11499] I
</FolderHierarchy:FolderSync>
2014-09-08T17:24:56+02:00 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx INFO: [11499]
Initializing folder diff engine
2014-09-08T17:24:56+02:00 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx INFO: [11499]
Horde_Core_ActiveSync_Driver::getFolderList()
-------------------
And outlook error: "connection is lost".