Hi there, I was dealing with a Lync 2013 client crash problem a few months ago and I wanted to provide some details on this issue since you might hit the same problem in your deployments as well when certain conditions are met. The exact problem was that when a user clicks on the…
Cumulative update version information for Lync client and Lync server
[Last updated on 27th February, 2014] Hi there, You can find a list of CU versions compiled from KB articles for cumulative update packages released for Lync client and Lync servers. Please note that the list only includes version information for Lync 2010 (desktop edition), Lync Server 2010, Lync 2013 (desktop edition) and Lync…
Exchange integration error on HP4120 desktop phones – A CA trust issue
I would like to go through an integration problem between Lync phone edition devices and Exchange 2010 that I worked on a while ago. Since the integration wasn’t working properly, users couldn’t access call logs, recorded voice mails, calendar information etc from their desktop phones (HP4120). To understand the problem in more details, we…
Lync 2010 response group members phones keep ringing even if the remote party hangs up the phone
In this blog post, I’ll be talking about a response group problem where the response group members phones keep ringing even if the user calling from pstn side hangs up the phone. I would like to talk about how I troubleshooted this issue: We first collected ETL traces and network traces from the mediation…
RDP connections might fail due to a problem with KB2621440 – MS12-020
I was helping a colleague who was dealing with a Remote desktop connection problem where Windows 8 client was failing to access a certain Windows 2008 R2 SP1 Terminal server. We first collected some logs while reproducing the problem to better understand why the RDP connection was failing: 1) Please start TCPIP/Winsock ETL tracing…
Desktop sharing fails between federated contacts running Lync 2010 clients
I would like to talk about another Lync 2010 problem where desktop sharing was failing between two federated contacts. Network traces and Lync ETL traces were collected while reproducing the problem. Here’s the troubleshooting steps that I followed: ANALYSIS: ======== Note: Please note that usernames, IP addresses, server names etc are all replaced for…
External users cannot sign in to Lync 2010
Today I’ll be talking about a problem where the external Lync 2010 clients fail to sign in through Lync 2010 Edge server intermittently and rebooting the Edge server helps resolve the issue for sometime until the problem reappears. There could be multiple problems that might prevent an external user from signing in successfully like authentication…
SCCM client push installation may fail due to firewall problems
I was collaborating with a colleague of mine on a problem where SCCM client push installation was failing. They suspected network connectivity problems and collected simultaneous network traces from SCCM server and from a problem client machine and involved me in for further analysis. When I check the SCCM server and client side traces,…
TMG Safe search feature may not work as expected sometimes
In this post, I would like to talk about a TMG safe search problem which I dealt with recently. The problem was that the TMG safesearch feature wasn’t working properly even though the all the requirements were met. We decided to collect dynamic logs while reproducing the problem (TMG data packager + client side logs)….
Slow performance when accessing a Sharepoint 2010 portal through an ISA 2006 array
I was involved in a slow Sharepoint portal access through an ISA 2006 array problem and I wanted to talk about how I dealt with that issue and found the root cause of the slowness issue. The problem was that the portal home page was loaded very slowly and sometimes it wasn’ loaded at all…