Informations

Case Number :
Case Label : Lync 2010 mobile 2013 External connection unstable
Date: October 22, 2014
Opening Date:

Country : France
Customer :
Exakis Contact : Laurent Teruin
Severity : B
Case Followers:

Microsoft Engineer:

 

Summary

 

Informations    1

Issue Description    2

Resolution Acceptance condition    4

Technical articles    4

Actions    4

Technical informations    6

Get-csservice-webserver    6

 

Issue Description

Hi today I cope with an issue of Lync 2013 Mobile Instability connection. The IPad and Samsung Mobile client can connect but each 2/ 3 Seconds the user is warned that there is a connection issue. See picture: Sorry we can connect to the server

Figure 1 : Samsung Galaxy Note Lync 2013 Mobile

Figure 2 : IPad Lync 2013 Mobile additionnal error

We have the same issue with an IPad device. We have tested on different 3G and external Wi-Fi network. Same behavior.

 

In the log: I’ve found that

 

HttpConnectionNativeCallback: exception none statusCode 204

ERROR TRANSPORT .\transportutilityfunctions.cpp/1770:Accept-types (application/vnd.microsoft.com.ucwa+xml) not found in Content-Type response from server (text/plain). Not decoding.

INFO TRANSPORT .\cucwarequestbase.cpp/228:Got a failed status code in the http header. Error = E_NotModified (E2-3-16), Request =

ERROR APPLICATION .\cpeoplechangenotificationsubscription.cpp/216:ChangeEventSubscription/Refresh request failed with error E_ResponseUnknown (E2-1-5)!

 

We checked the Reverse Proxy Deny All and no request are rejected.

We have changed the user login name as domain\username.. Same issue

Resolution Acceptance condition

Technical articles

http://www.vmwareandme.com/2013/11/step-by-step-guide-to-configure-apache.html#.VEYaRHkcQ5u
http://blogs.technet.com/b/dodeitte/archive/2013/02/27/lync-2013-mobility.aspx
http://www.confusedamused.com/notebook/lync-2013-mobile-clients-and-apache-reverse-proxy/
http://www.davidhaegel.fr/2014/03/19/lync-2013-reverse-proxy-apache-provoquant-erreurs-aleatoires-client-mobile/

Actions

We have this in the Apache configuration
AddType application/vnd.microsoft.com.ucwa+xml .xml

Résolution

We try this: https://unifiedit.wordpress.com/2013/10/18/lync-2013-apache-reverse-proxy/ 😉 and it solve the issue!

Technical informations

The Lync 2013 Mobile client on Samsung Galaxy Note 2014 Edition is : 5.4.1106.0

The Lync 2013 Mobile client on Ipad : 5.6

Rerverse Proxy Deny All version 4.1.2.1

Apache Version :