"{0}" communication error. Please check port number.

[aabusaad]

Zimbra Desktop asked me to post this debug info in the forum if problem persists. Since the problem persisted, here is the debug info:


Debug message: Unbuffered entity enclosing request can not be repeated.

Exception:

com.zimbra.common.service.ServiceException: system failure: PushChanges.sync
ExceptionId:mid=3:1313198591671:3fb5461e0f236421
Code:service.FAILURE
at com.zimbra.common.service.ServiceException.FAILURE (ServiceException.java:253)
at com.zimbra.cs.mailbox.SyncExceptionHandler.checkRe coverableException(SyncExceptionHandler.java:40)
at com.zimbra.cs.mailbox.PushChanges.sync(PushChanges .java:378)
at com.zimbra.cs.mailbox.PushChanges.sync(PushChanges .java:175)
at com.zimbra.cs.mailbox.MailboxSync.sync(MailboxSync .java:189)
at com.zimbra.cs.mailbox.OfflineMailbox.sync(OfflineM ailbox.java:140)
at com.zimbra.cs.mailbox.OfflineMailbox.syncOnTimer(O fflineMailbox.java:121)
at com.zimbra.cs.mailbox.DesktopMailbox$1.run(Desktop Mailbox.java:437)
at java.util.TimerThread.mainLoop(Unknown Source)
at java.util.TimerThread.run(Unknown Source)
Caused by: com.zimbra.cs.zclient.ZClientException: Unbuffered entity enclosing request can not be repeated.
ExceptionId:mid=3:1313198591671:3fb5461e0f236421
Code:zclient.IO_ERROR
at com.zimbra.cs.zclient.ZClientException.IO_ERROR(ZC lientException.java:47)
at com.zimbra.cs.zclient.ZMailbox.uploadContentAsStre am(ZMailbox.java:1900)
at com.zimbra.cs.mailbox.PushChanges.uploadMessage(Pu shChanges.java:532)
at com.zimbra.cs.mailbox.PushChanges.syncMessage(Push Changes.java:1179)
at com.zimbra.cs.mailbox.PushChanges.sync(PushChanges .java:371)
... 7 more
Caused by: org.apache.commons.httpclient.ProtocolException: Unbuffered entity enclosing request can not be repeated.
at org.apache.commons.httpclient.methods.EntityEnclos ingMethod.writeRequestBody(EntityEnclosingMethod.j ava:483)
at org.apache.commons.httpclient.HttpMethodBase.write Request(HttpMethodBase.java:1973)
at org.apache.commons.httpclient.HttpMethodBase.execu te(HttpMethodBase.java:993)
at org.apache.commons.httpclient.HttpMethodDirector.e xecuteWithRetry(HttpMethodDirector.java:397)
at org.apache.commons.httpclient.HttpMethodDirector.e xecuteMethod(HttpMethodDirector.java:170)
at org.apache.commons.httpclient.HttpClient.executeMe thod(HttpClient.java:396)
at org.apache.commons.httpclient.HttpClient.executeMe thod(HttpClient.java:324)
at com.zimbra.cs.zclient.ZMailbox.uploadContentAsStre am(ZMailbox.java:1890)
... 10 more

[phoenix]

If you're still using the version in your profile (1.0.3) then I'd suggest you get yourself updated to the most recent 7.1.2 release of Zimbra Desktop. Make sure you read all the documentation od FAQ for details on how to upgrade and take a backup before you make any changes to your current Zimbra Desktop.